This document discusses various methods for organic weed management, including preventive, cultural, mechanical, biological, and chemical (organically approved) controls. Preventive measures aim to limit the introduction and spread of weed seeds. Cultural controls involve maintaining competitive crop conditions through methods like crop rotation, cover cropping, and mulching. Mechanical controls use hand/mechanical cultivation and mowing. Biological controls utilize allelopathy, beneficial organisms, and mycoherbicides. Organically approved chemicals like corn gluten meal and vinegar/essential oil mixtures are also options. The goal of an organic weed management system is to implement a whole farm approach that minimizes weed invasion and gives crops a competitive advantage over weeds.
This document discusses various tools and practices for managing weeds in organic agriculture. Cultural practices like intercropping, crop rotations, and allelopathic cover crops can improve crop competitiveness and suppress weeds. Mechanical methods like hand weeding, cultivation with various tools, and flaming are effective at controlling emerged weeds. Mulching and solarization prevent weed seeds from germinating. Breeding crops to be more competitive against weeds and developing bioherbicides are also discussed.
This document outlines the key steps involved in seed processing, which includes pre-conditioning, cleaning, and grading. Pre-conditioning involves removing plant parts from harvested seeds through shelling. Cleaning is done using air screens and vibrating screens to remove external materials like trash and stones. This is mostly done using an air-screen cleaner. The final step of grading further separates seeds by size, shape, and other physical properties using different machines like specific gravity separators or spiral separators to obtain high quality seeds free of impurities. Seed processing helps improve planting conditions, seed quality, and applies treatments to prevent disease.
This document provides an overview of nursery management. It discusses the definition, need, advantages and site selection for nurseries. It describes different types of nurseries based on structure, plants, timing and position. Methods of nursery preparation are outlined, including open field, pot, polyhouse, plug, tunnel and bag systems. Layout, inputs, tools, operations and common diseases are summarized. Videos are included for raising seedlings, transplanting and hi-tech nurseries.
Weed competition is a major limiting factor for the productivity of crops. Weed control is one of the main concerns in organic farming. Weed depletes nutrient, water and light their by reducing crops yields drastically. The chemical intervention is not permitted for weed control purpose in organic farming system. Apprehension regarding the consequence of managing weeds without the use of herbicides is a major factor limiting the adoption of organic farming by conventional growers. As wide spread application of herbicides has led to concern about contamination of environment, residues problems in soil and water, toxicity to animals and appearance to resistant weeds. The elements to consider in controlling weed problems are only the non chemical methods of weed control. These include physical /mechanical, cultural and biological methods of weed control.
What is Rouging?
Rouging for quality seed production,
A major source of off-type plant,
Rouging in Certified Seed Production,
Rouging During rice seed production.
Seed storage involves preserving seeds with their initial quality from harvest until planting. There are different stages of storage from when seeds reach maturity on the plant until they are planted. The main objectives of storage are to maintain seed germination, purity, and vigor by providing suitable storage conditions. Key factors that influence seed longevity during storage include moisture content, temperature, humidity, pests, and the genetic characteristics of the seeds. Proper storage requires dry, cool conditions with pest control and high-quality seeds.
This document provides information on protected cultivation using greenhouses. It discusses the benefits of protected cultivation including higher yields, year-round production, better quality, and protection from weather. Greenhouses allow full or partial control of the microclimate around plants. Vegetables and flowers are well-suited for greenhouses. The types of greenhouses described are attached (lean-to, even-span, window-mounted) and freestanding structures. Requirements for greenhouse covering materials and fertigation systems are also outlined. India has an area of 25,000 hectares under protected cultivation currently, compared to other leading countries. The costs for establishing one acre of greenhouse with irrigation and climate control systems to grow cucumbers are
This document discusses various tools and practices for managing weeds in organic agriculture. Cultural practices like intercropping, crop rotations, and allelopathic cover crops can improve crop competitiveness and suppress weeds. Mechanical methods like hand weeding, cultivation with various tools, and flaming are effective at controlling emerged weeds. Mulching and solarization prevent weed seeds from germinating. Breeding crops to be more competitive against weeds and developing bioherbicides are also discussed.
This document outlines the key steps involved in seed processing, which includes pre-conditioning, cleaning, and grading. Pre-conditioning involves removing plant parts from harvested seeds through shelling. Cleaning is done using air screens and vibrating screens to remove external materials like trash and stones. This is mostly done using an air-screen cleaner. The final step of grading further separates seeds by size, shape, and other physical properties using different machines like specific gravity separators or spiral separators to obtain high quality seeds free of impurities. Seed processing helps improve planting conditions, seed quality, and applies treatments to prevent disease.
This document provides an overview of nursery management. It discusses the definition, need, advantages and site selection for nurseries. It describes different types of nurseries based on structure, plants, timing and position. Methods of nursery preparation are outlined, including open field, pot, polyhouse, plug, tunnel and bag systems. Layout, inputs, tools, operations and common diseases are summarized. Videos are included for raising seedlings, transplanting and hi-tech nurseries.
Weed competition is a major limiting factor for the productivity of crops. Weed control is one of the main concerns in organic farming. Weed depletes nutrient, water and light their by reducing crops yields drastically. The chemical intervention is not permitted for weed control purpose in organic farming system. Apprehension regarding the consequence of managing weeds without the use of herbicides is a major factor limiting the adoption of organic farming by conventional growers. As wide spread application of herbicides has led to concern about contamination of environment, residues problems in soil and water, toxicity to animals and appearance to resistant weeds. The elements to consider in controlling weed problems are only the non chemical methods of weed control. These include physical /mechanical, cultural and biological methods of weed control.
What is Rouging?
Rouging for quality seed production,
A major source of off-type plant,
Rouging in Certified Seed Production,
Rouging During rice seed production.
Seed storage involves preserving seeds with their initial quality from harvest until planting. There are different stages of storage from when seeds reach maturity on the plant until they are planted. The main objectives of storage are to maintain seed germination, purity, and vigor by providing suitable storage conditions. Key factors that influence seed longevity during storage include moisture content, temperature, humidity, pests, and the genetic characteristics of the seeds. Proper storage requires dry, cool conditions with pest control and high-quality seeds.
This document provides information on protected cultivation using greenhouses. It discusses the benefits of protected cultivation including higher yields, year-round production, better quality, and protection from weather. Greenhouses allow full or partial control of the microclimate around plants. Vegetables and flowers are well-suited for greenhouses. The types of greenhouses described are attached (lean-to, even-span, window-mounted) and freestanding structures. Requirements for greenhouse covering materials and fertigation systems are also outlined. India has an area of 25,000 hectares under protected cultivation currently, compared to other leading countries. The costs for establishing one acre of greenhouse with irrigation and climate control systems to grow cucumbers are
Varietal identificaton through grow-out test and ElectrophoresisNSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Varietal identificaton through grow-out test and Electrophoresis.
Organic farming avoids synthetic inputs like fertilizers and pesticides and relies on crop rotations, crop residues, manures, and biological processes. It aims to maintain soil fertility, encourage biological activity, and use insoluble nutrient sources made available by microorganisms. Nitrogen is obtained through legumes and recycling organic materials. Weed, pest, and disease control uses crop rotations, natural predators, and resistant varieties. Livestock are extensively managed with attention to their welfare and the environment is conserved. The four principles of organic farming are health, ecology, fairness, and precaution.
Cultural weed control uses non-chemical crop management practices like crop variety selection, tillage, fertilizer application, planting density, mulching, crop rotation, intercropping, and water management to suppress weeds. These practices create favorable conditions for crop growth and competition against weeds. While cultural methods alone cannot eliminate all weeds, they can significantly reduce weed populations as part of an integrated weed management approach. Common cultural practices include tilling to expose weed roots and seeds to the sun, keeping fields and irrigation channels free of weeds, using fast-growing crops that form a dense canopy to shade weeds, and flooding fields to prevent weed germination.
This document discusses various methods of weed control, including cultural, physical, chemical, and biological methods. Cultural methods involve practices like tillage, fertilizer application, irrigation, crop rotation, and mulching. Physical/mechanical methods include hand weeding, hoeing, digging, sickling, and mowing. The document describes various mechanical weed control tools. Herbicides are also discussed, outlining their benefits and limitations. Biological control uses living organisms like insects and pathogens to control specific weed species. No single method is effective for all situations, so often an integrated approach using multiple methods provides the best weed control.
Detection of Genetically modified plants and Organic Seed production.NSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Detection of Genetically modified plants and Organic Seed production.
1) Proper post-harvest handling of cut flowers is important to maintain quality and extend vase life. It involves harvesting at the right stage of maturity, grading, chemical pulsing for preservatives, packing, cooling, and storage at optimal temperatures and humidity.
2) Key aspects of post-harvest handling include harvesting in the morning or evening, proper bunching and sleeving techniques, using pre-cooling and chemical pulses to prolong vase life, and storing flowers at temperatures between 2-8°C and 75-99% relative humidity.
3) Maintaining optimal post-harvest conditions through all stages of handling, transport, and marketing is crucial to delivering fresh flowers and maximizing profits.
1) Integration of medicinal and aromatic plants (MAPs) into different cropping systems can help address issues of limited land availability for MAP cultivation and ensure optimal resource utilization. MAPs can be grown as intercrops or in multistorey, agroforestry, and crop rotation systems.
2) Intercropping MAPs provides benefits like increased total productivity, insurance against crop failure, and better use of resources. Examples of successful MAP intercropping include senna with chickpea, and various aromatic plants grown with coconut or oil palm.
3) MAPs are also suited to agroforestry systems, where they can be grown among timber trees or as components of multistore
This document provides information on eggplant/brinjal seed and hybrid production techniques. It discusses the botanical varieties of eggplant, important germplasm sources, hybrids released nationally, isolation distances required, genetic variability, wild related species, floral biology, nursery management, transplanting, plant protection measures, hybridization techniques, seed extraction methods, and the economics of hybrid seed production. The optimal techniques aim to produce high quality F1 hybrid seeds with desirable traits like early maturity, uniformity, high yield, and stress resistance.
High external input agriculture (HEIA) relies heavily on chemical fertilizers, pesticides, irrigation and other external inputs which can be financially unsustainable for small farmers and damage the environment over time. Low external input sustainable agriculture (LEISA) focuses on optimizing natural processes, environmental sustainability, and the long-term needs of farmers through practices like nutrient recycling, integrated pest management, and crop diversification tailored to local conditions. The key differences between HEIA and LEISA are that HEIA depends on high yields through external inputs while damaging the environment, whereas LEISA prioritizes sustainability through minimal external inputs and optimizing local resources.
Plant propagation structures in plant nursery.pptPudhuvai Baveesh
Plant propagation structures like greenhouses, polyhouses, net houses, plastic tunnels, mist chambers and hot beds play an important role in nursery production. They help maintain optimal climate conditions for seed germination and rooting cuttings. Greenhouses allow year-round production and offer precise environmental control. Polyhouses, net houses and plastic tunnels are also used for off-season propagation. Mist chambers maintain high humidity needed for rooting cuttings. Hot beds provide early seedling starts using supplemental heat. These structures enhance nursery productivity and quality through customized growing environments.
CLASSIFICATION OF ALTERNATE LAND USE SYSTEMsubhashB10
This document discusses different systems for classifying alternate land use and agroforestry systems. It describes five classification approaches: 1) based on structural systems, which considers the components and their arrangements, 2) based on importance of components, 3) based on dominance of components, 4) based on temporal arrangements of components, and 5) based on allied components like sericulture or apiculture. Key systems described include agri-silvi, silvi-pastoral, and agri-silvi-pastoral systems.
Seed inspectors are appointed by state governments to enforce seed quality control laws. They have various qualifications and duties including integrity, knowledge of seed standards, sampling procedures, and enforcement powers. Inspectors are responsible for drawing representative samples, sending them for analysis, investigating potential offenses, and taking actions like stop sale orders or seizures if standards are not met. They aim to educate industry and ensure compliance with laws to protect seed quality and the industry.
This document provides an overview of brinjal/eggplant, including its taxonomy, origin, distribution, floral biology, breeding techniques, objectives, and major research centers. It discusses that brinjal is a self-pollinated crop native to India that is an important vegetable worldwide. Common breeding objectives are to develop varieties with high yield, biotic/abiotic stress resistance, and preferred fruit qualities. Key breeding methods include pure line selection, pedigree, bulk, backcrossing, and heterosis. Major research on brinjal is conducted in India, Taiwan, and other Asian and North American countries.
This document provides an overview of organic weed management strategies for farmers. It discusses using multiple prevention and elimination approaches, including cultural, mechanical, biological, and chemical methods. Cultural strategies involve improving crop competitiveness through practices like crop rotation, cover cropping, mulching, and selecting competitive varieties. Mechanical methods include cultivation, mowing, and flaming. Biological controls utilize insects, diseases, and grazing animals. Organically-approved herbicides can also be used. The document emphasizes implementing many different strategies together for effective long-term weed management.
This document discusses different types of greenhouses. It classifies greenhouses based on their working principles as either passive or active. It also categorizes greenhouses by their construction cost and technology level as low, medium or high-tech. Additionally, the document describes various greenhouse types based on their structure, covering material and shape. Common structure types include wooden framed, pipe framed and truss framed. Common covering materials are glass, plastic films and rigid panels. Common greenhouse shapes mentioned are solarium, quonset, gable and connected styles.
Fertilizer Control Order (FCO) is a crucial regulatory framework implemented by governments to ensure the quality, availability, and proper use of fertilizers. It serves as a mechanism to monitor and regulate the production, distribution, labeling, and sale of fertilizers, with the ultimate goal of promoting sustainable agriculture and safeguarding the interests of farmers and consumers.
The FCO encompasses a wide range of provisions and regulations that govern various aspects of the fertilizer industry. One of its primary objectives is to ensure the quality of fertilizers available in the market. The FCO sets specific standards for nutrient content, physical characteristics, impurities, and labeling requirements. By enforcing these standards, the FCO aims to prevent the sale of substandard or adulterated fertilizers that could have detrimental effects on crop productivity and soil health.
Another key aspect of the FCO is the regulation of fertilizer pricing. Governments often intervene to control the prices of fertilizers to make them affordable for farmers. The FCO may include provisions to monitor and control the pricing of fertilizers, ensuring that they remain accessible to farmers while preventing price manipulation and exploitation.
The FCO also addresses the licensing and registration of fertilizer manufacturers, importers, and distributors. Manufacturers and importers are required to obtain licenses or registrations from the designated regulatory authorities. This helps in maintaining a record of fertilizer producers and suppliers, ensuring accountability, and enabling traceability in case of any quality-related issues or non-compliance.
To ensure compliance with the FCO, regulatory bodies are empowered with inspection and monitoring mechanisms. They conduct regular inspections of fertilizer manufacturing facilities, storage sites, and distribution channels to verify compliance with quality standards, labeling requirements, and other provisions of the FCO. Non-compliance can lead to penalties, fines, or even suspension of licenses, acting as a deterrent for violations and promoting adherence to the regulations.
The FCO also addresses the issue of fertilizers' safe and efficient use. It may mandate the inclusion of information on fertilizer labels regarding dosage, application methods, and safety precautions. This helps farmers make informed decisions about fertilizer application, preventing excessive or improper use that can lead to environmental pollution, nutrient imbalances, and crop damage. The FCO may also encourage the promotion of organic and biofertilizers, providing incentives and support for their production and utilization.
This document summarizes a doctoral seminar presentation on research related to grafting of vegetable crops. The presentation covered the definition and purpose of grafting, the history of vegetable grafting, common grafting methods, and research examining the effects of grafting on various vegetable crops such as watermelon, cucumber, tomato, brinjal, chilli, and okra. Specific rootstocks were highlighted for their ability to improve yield, quality, and resistance to biotic and abiotic stresses for different vegetable crops.
Status of Protected Cultivation in India and AbroadParshant Bakshi
This document provides an overview of protected cultivation in India and abroad. It discusses how protected structures like greenhouses, net houses, and plastic tunnels allow crops to be grown under controlled climatic conditions, leading to early production, higher quality, and protection from pests and diseases. In India, protected cultivation is a relatively new technology introduced around 30 years ago, while countries like China, Israel, the US, and several European nations have practiced it for over a century. The document also outlines the various types of protected structures used for different fruit crops and describes the environmental parameters that can be controlled inside structures like polyhouses to optimize plant growth.
This document discusses weed management strategies in cropping systems. It covers the importance of weed management for crop yield and quality. A variety of weed management methods are described including prevention, cultivation, cover crops, mowing, flaming, hand removal, mulching, soil solarization, and herbicides. Proper identification of weed species is important for developing effective management plans as weeds vary in competitiveness, response to control methods, and ability to reduce yields. Timely application of control methods early in the crop growing season gives crops a competitive advantage over weeds.
Presentation on preventive measures of weed control.pptxSudha Neupane
Weeds have been known since the ancient times. Weed are unwanted plant that grow along with the main crop in the field. Weed are considered as cumbersome for successful agriculture production. Due to crop-weed competition the crop yield losses are generally high in agriculture production. So, in order to minimize such losses farmers are practicing several weed management strategies which includes prevention, eradication, control (mechanical, cultural, biological and chemical method). The cultural methods are expensive and time consuming so, farmer have to move towards other alternative methods of weed control Varga et.al (2000). Furthermore, due to rising labor cost and non-availability of labor for manual weeding during the critical period of weed control has contributed to use of herbicides. Herbicides not only timely and effectively controls the weed but also offer a great scope for minimizing the cost of production Varga et.al (2000). Control methods are applied after the emergence of weed on the field while prevention methods of weed control are adopted before sowing the crops. Generally, there are two objectives: 1. To prevent the entry and establishment of weed species in an area.2. To prevent the spread of weed or to limit the weed build up in a field.
These objectives are referred as prevention. And any method that are applied before sowing the crop to prevent there entry , establishment and spreads comes under the prevention category. Focusing on second objective of preventive measures of weed control we can say that some cultural methods such as crop rotation or crop diversification, stale seed bed, tillage system, cover crops ( used as green manures or dead mulches),soil solarization, irrigation and drainage systems and crop residues managements can be included under preventive methods of weed control. In practice, weed management strategies should integrate indirect (preventive) methods with direct (cultural and curative) methods. The first category includes any method used before a crop is sown, while the second includes any methods applied during a crop growing cycle. Methods in both categories can influence either weed density (i.e., the number of individuals per unit area) and/or weed development (biomass production and soil cover). However, while indirect methods aim mainly to reduce the numbers of plants emerging in a crop, direct methods also aim to increase crop competitive ability against weeds.The success of prevention depends on awareness of the problem, species, effort, Co-operation, area.
•Most effective where adopted against a single species on a large area on a cooperative basis.
In conclusion we can say that farmers have several preventive methods in their arsenal that they can put together to build up a good weed management strategy. Preventive weed control is permanent weed control and usually require community action. it. For this process, a collective or joint effort and commitment is required.
Varietal identificaton through grow-out test and ElectrophoresisNSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Varietal identificaton through grow-out test and Electrophoresis.
Organic farming avoids synthetic inputs like fertilizers and pesticides and relies on crop rotations, crop residues, manures, and biological processes. It aims to maintain soil fertility, encourage biological activity, and use insoluble nutrient sources made available by microorganisms. Nitrogen is obtained through legumes and recycling organic materials. Weed, pest, and disease control uses crop rotations, natural predators, and resistant varieties. Livestock are extensively managed with attention to their welfare and the environment is conserved. The four principles of organic farming are health, ecology, fairness, and precaution.
Cultural weed control uses non-chemical crop management practices like crop variety selection, tillage, fertilizer application, planting density, mulching, crop rotation, intercropping, and water management to suppress weeds. These practices create favorable conditions for crop growth and competition against weeds. While cultural methods alone cannot eliminate all weeds, they can significantly reduce weed populations as part of an integrated weed management approach. Common cultural practices include tilling to expose weed roots and seeds to the sun, keeping fields and irrigation channels free of weeds, using fast-growing crops that form a dense canopy to shade weeds, and flooding fields to prevent weed germination.
This document discusses various methods of weed control, including cultural, physical, chemical, and biological methods. Cultural methods involve practices like tillage, fertilizer application, irrigation, crop rotation, and mulching. Physical/mechanical methods include hand weeding, hoeing, digging, sickling, and mowing. The document describes various mechanical weed control tools. Herbicides are also discussed, outlining their benefits and limitations. Biological control uses living organisms like insects and pathogens to control specific weed species. No single method is effective for all situations, so often an integrated approach using multiple methods provides the best weed control.
Detection of Genetically modified plants and Organic Seed production.NSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Detection of Genetically modified plants and Organic Seed production.
1) Proper post-harvest handling of cut flowers is important to maintain quality and extend vase life. It involves harvesting at the right stage of maturity, grading, chemical pulsing for preservatives, packing, cooling, and storage at optimal temperatures and humidity.
2) Key aspects of post-harvest handling include harvesting in the morning or evening, proper bunching and sleeving techniques, using pre-cooling and chemical pulses to prolong vase life, and storing flowers at temperatures between 2-8°C and 75-99% relative humidity.
3) Maintaining optimal post-harvest conditions through all stages of handling, transport, and marketing is crucial to delivering fresh flowers and maximizing profits.
1) Integration of medicinal and aromatic plants (MAPs) into different cropping systems can help address issues of limited land availability for MAP cultivation and ensure optimal resource utilization. MAPs can be grown as intercrops or in multistorey, agroforestry, and crop rotation systems.
2) Intercropping MAPs provides benefits like increased total productivity, insurance against crop failure, and better use of resources. Examples of successful MAP intercropping include senna with chickpea, and various aromatic plants grown with coconut or oil palm.
3) MAPs are also suited to agroforestry systems, where they can be grown among timber trees or as components of multistore
This document provides information on eggplant/brinjal seed and hybrid production techniques. It discusses the botanical varieties of eggplant, important germplasm sources, hybrids released nationally, isolation distances required, genetic variability, wild related species, floral biology, nursery management, transplanting, plant protection measures, hybridization techniques, seed extraction methods, and the economics of hybrid seed production. The optimal techniques aim to produce high quality F1 hybrid seeds with desirable traits like early maturity, uniformity, high yield, and stress resistance.
High external input agriculture (HEIA) relies heavily on chemical fertilizers, pesticides, irrigation and other external inputs which can be financially unsustainable for small farmers and damage the environment over time. Low external input sustainable agriculture (LEISA) focuses on optimizing natural processes, environmental sustainability, and the long-term needs of farmers through practices like nutrient recycling, integrated pest management, and crop diversification tailored to local conditions. The key differences between HEIA and LEISA are that HEIA depends on high yields through external inputs while damaging the environment, whereas LEISA prioritizes sustainability through minimal external inputs and optimizing local resources.
Plant propagation structures in plant nursery.pptPudhuvai Baveesh
Plant propagation structures like greenhouses, polyhouses, net houses, plastic tunnels, mist chambers and hot beds play an important role in nursery production. They help maintain optimal climate conditions for seed germination and rooting cuttings. Greenhouses allow year-round production and offer precise environmental control. Polyhouses, net houses and plastic tunnels are also used for off-season propagation. Mist chambers maintain high humidity needed for rooting cuttings. Hot beds provide early seedling starts using supplemental heat. These structures enhance nursery productivity and quality through customized growing environments.
CLASSIFICATION OF ALTERNATE LAND USE SYSTEMsubhashB10
This document discusses different systems for classifying alternate land use and agroforestry systems. It describes five classification approaches: 1) based on structural systems, which considers the components and their arrangements, 2) based on importance of components, 3) based on dominance of components, 4) based on temporal arrangements of components, and 5) based on allied components like sericulture or apiculture. Key systems described include agri-silvi, silvi-pastoral, and agri-silvi-pastoral systems.
Seed inspectors are appointed by state governments to enforce seed quality control laws. They have various qualifications and duties including integrity, knowledge of seed standards, sampling procedures, and enforcement powers. Inspectors are responsible for drawing representative samples, sending them for analysis, investigating potential offenses, and taking actions like stop sale orders or seizures if standards are not met. They aim to educate industry and ensure compliance with laws to protect seed quality and the industry.
This document provides an overview of brinjal/eggplant, including its taxonomy, origin, distribution, floral biology, breeding techniques, objectives, and major research centers. It discusses that brinjal is a self-pollinated crop native to India that is an important vegetable worldwide. Common breeding objectives are to develop varieties with high yield, biotic/abiotic stress resistance, and preferred fruit qualities. Key breeding methods include pure line selection, pedigree, bulk, backcrossing, and heterosis. Major research on brinjal is conducted in India, Taiwan, and other Asian and North American countries.
This document provides an overview of organic weed management strategies for farmers. It discusses using multiple prevention and elimination approaches, including cultural, mechanical, biological, and chemical methods. Cultural strategies involve improving crop competitiveness through practices like crop rotation, cover cropping, mulching, and selecting competitive varieties. Mechanical methods include cultivation, mowing, and flaming. Biological controls utilize insects, diseases, and grazing animals. Organically-approved herbicides can also be used. The document emphasizes implementing many different strategies together for effective long-term weed management.
This document discusses different types of greenhouses. It classifies greenhouses based on their working principles as either passive or active. It also categorizes greenhouses by their construction cost and technology level as low, medium or high-tech. Additionally, the document describes various greenhouse types based on their structure, covering material and shape. Common structure types include wooden framed, pipe framed and truss framed. Common covering materials are glass, plastic films and rigid panels. Common greenhouse shapes mentioned are solarium, quonset, gable and connected styles.
Fertilizer Control Order (FCO) is a crucial regulatory framework implemented by governments to ensure the quality, availability, and proper use of fertilizers. It serves as a mechanism to monitor and regulate the production, distribution, labeling, and sale of fertilizers, with the ultimate goal of promoting sustainable agriculture and safeguarding the interests of farmers and consumers.
The FCO encompasses a wide range of provisions and regulations that govern various aspects of the fertilizer industry. One of its primary objectives is to ensure the quality of fertilizers available in the market. The FCO sets specific standards for nutrient content, physical characteristics, impurities, and labeling requirements. By enforcing these standards, the FCO aims to prevent the sale of substandard or adulterated fertilizers that could have detrimental effects on crop productivity and soil health.
Another key aspect of the FCO is the regulation of fertilizer pricing. Governments often intervene to control the prices of fertilizers to make them affordable for farmers. The FCO may include provisions to monitor and control the pricing of fertilizers, ensuring that they remain accessible to farmers while preventing price manipulation and exploitation.
The FCO also addresses the licensing and registration of fertilizer manufacturers, importers, and distributors. Manufacturers and importers are required to obtain licenses or registrations from the designated regulatory authorities. This helps in maintaining a record of fertilizer producers and suppliers, ensuring accountability, and enabling traceability in case of any quality-related issues or non-compliance.
To ensure compliance with the FCO, regulatory bodies are empowered with inspection and monitoring mechanisms. They conduct regular inspections of fertilizer manufacturing facilities, storage sites, and distribution channels to verify compliance with quality standards, labeling requirements, and other provisions of the FCO. Non-compliance can lead to penalties, fines, or even suspension of licenses, acting as a deterrent for violations and promoting adherence to the regulations.
The FCO also addresses the issue of fertilizers' safe and efficient use. It may mandate the inclusion of information on fertilizer labels regarding dosage, application methods, and safety precautions. This helps farmers make informed decisions about fertilizer application, preventing excessive or improper use that can lead to environmental pollution, nutrient imbalances, and crop damage. The FCO may also encourage the promotion of organic and biofertilizers, providing incentives and support for their production and utilization.
This document summarizes a doctoral seminar presentation on research related to grafting of vegetable crops. The presentation covered the definition and purpose of grafting, the history of vegetable grafting, common grafting methods, and research examining the effects of grafting on various vegetable crops such as watermelon, cucumber, tomato, brinjal, chilli, and okra. Specific rootstocks were highlighted for their ability to improve yield, quality, and resistance to biotic and abiotic stresses for different vegetable crops.
Status of Protected Cultivation in India and AbroadParshant Bakshi
This document provides an overview of protected cultivation in India and abroad. It discusses how protected structures like greenhouses, net houses, and plastic tunnels allow crops to be grown under controlled climatic conditions, leading to early production, higher quality, and protection from pests and diseases. In India, protected cultivation is a relatively new technology introduced around 30 years ago, while countries like China, Israel, the US, and several European nations have practiced it for over a century. The document also outlines the various types of protected structures used for different fruit crops and describes the environmental parameters that can be controlled inside structures like polyhouses to optimize plant growth.
This document discusses weed management strategies in cropping systems. It covers the importance of weed management for crop yield and quality. A variety of weed management methods are described including prevention, cultivation, cover crops, mowing, flaming, hand removal, mulching, soil solarization, and herbicides. Proper identification of weed species is important for developing effective management plans as weeds vary in competitiveness, response to control methods, and ability to reduce yields. Timely application of control methods early in the crop growing season gives crops a competitive advantage over weeds.
Presentation on preventive measures of weed control.pptxSudha Neupane
Weeds have been known since the ancient times. Weed are unwanted plant that grow along with the main crop in the field. Weed are considered as cumbersome for successful agriculture production. Due to crop-weed competition the crop yield losses are generally high in agriculture production. So, in order to minimize such losses farmers are practicing several weed management strategies which includes prevention, eradication, control (mechanical, cultural, biological and chemical method). The cultural methods are expensive and time consuming so, farmer have to move towards other alternative methods of weed control Varga et.al (2000). Furthermore, due to rising labor cost and non-availability of labor for manual weeding during the critical period of weed control has contributed to use of herbicides. Herbicides not only timely and effectively controls the weed but also offer a great scope for minimizing the cost of production Varga et.al (2000). Control methods are applied after the emergence of weed on the field while prevention methods of weed control are adopted before sowing the crops. Generally, there are two objectives: 1. To prevent the entry and establishment of weed species in an area.2. To prevent the spread of weed or to limit the weed build up in a field.
These objectives are referred as prevention. And any method that are applied before sowing the crop to prevent there entry , establishment and spreads comes under the prevention category. Focusing on second objective of preventive measures of weed control we can say that some cultural methods such as crop rotation or crop diversification, stale seed bed, tillage system, cover crops ( used as green manures or dead mulches),soil solarization, irrigation and drainage systems and crop residues managements can be included under preventive methods of weed control. In practice, weed management strategies should integrate indirect (preventive) methods with direct (cultural and curative) methods. The first category includes any method used before a crop is sown, while the second includes any methods applied during a crop growing cycle. Methods in both categories can influence either weed density (i.e., the number of individuals per unit area) and/or weed development (biomass production and soil cover). However, while indirect methods aim mainly to reduce the numbers of plants emerging in a crop, direct methods also aim to increase crop competitive ability against weeds.The success of prevention depends on awareness of the problem, species, effort, Co-operation, area.
•Most effective where adopted against a single species on a large area on a cooperative basis.
In conclusion we can say that farmers have several preventive methods in their arsenal that they can put together to build up a good weed management strategy. Preventive weed control is permanent weed control and usually require community action. it. For this process, a collective or joint effort and commitment is required.
The document discusses pest, pathogen, and weed management techniques for conservation agriculture, including integrated pest management strategies and different mechanical, biological, and chemical approaches for controlling weeds such as using soil cover, hand pulling weeds, and applying herbicides in an integrated manner. Delaying weeding can significantly reduce crop yields, so the document provides steps for farmers to follow to control weeds at different stages of crop growth.
6. cultural control of weeds A lecture by Allah Dad Khan Mr.Allah Dad Khan
Cultural weed control uses non-chemical crop management practices like variety selection, land preparation, and harvesting techniques. It aims to prevent weed growth and reduce weed populations through practices like maintaining soil moisture to suppress weeds, using crop rotations and intercropping to limit available nutrients and space for weeds, and establishing crop stands that are vigorous competitors with weeds through practices like optimizing planting dates and fertilizer application. The document provides 25 specific cultural weed control practices and explains how each works to control weeds without the use of herbicides.
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In recent years, the talk on Organic Farming is going on. how can we control the weed plants in the field without using the herbicide the question. there are several methods traditionally used and scientifically proved methods are discussed here.
Integrated weed management involves using a combination of mechanical, cultural, chemical and biological weed control methods together in a planned way. The goal is to minimize weed competition with crops and reduce weed populations below an economic threshold level while avoiding environmental and health impacts. It has been shown to be an effective concept for weed control, though more work is still needed to apply it at the small farmer level.
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This document outlines the principles of weed management, including prevention, eradication, control, and management. Prevention focuses on stopping weed infestation through measures like using weed-free crop seeds, avoiding contamination of manure pits, and preventing the movement of weeds. Eradication aims to completely remove all parts of a weed from an area and is justified for noxious weeds, while control reduces weed infestations without elimination. Weed management takes a systems approach to minimize weed invasion and give crops a competitive advantage over weeds.
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This document discusses cultural control methods for reducing pest damage to crops. Cultural control involves manipulating farming practices, like plowing, weeding, pruning, and crop rotation, to make the environment less favorable for pests. The practices may directly impact pest growth and reproduction or minimize their ability to attack plants. The goal is to control pests in an environmentally sound way without using pesticides. Some examples provided include intercropping cowpeas with sorghum to reduce stem borers, and destroying weed hosts to control citrus fruit sucking moths. Advantages are low cost and minimal environmental impact, while disadvantages include requiring long-term planning and not providing complete pest control.
Organic farming definition, methods of organic farming, advantages of organic farming, pest control techniques, necessity in Medicinal and aromatic plants,
Ecological manipulation and integrated pest management are important approaches. Cultural control methods manipulate the environment to make it less suitable for pests through practices like proper cultivation, crop rotation, trap cropping and resistant varieties. Ecological engineering enhances natural pest control by providing food and shelter for natural enemies. Biological control uses natural enemies like parasitoids and predators that are encouraged and disseminated. The AESA method involves observing crop fields and analyzing the interactions between pests, natural enemies and the environment to inform sustainable management practices.
23. integrated weed management ( iwm cultural weed control) A Presentation B...Mr.Allah Dad Khan
Crop rotations, improving crop competitiveness through vigorous seeding, optimum seeding rates and timing, and maintaining competitive crop varieties are effective cultural control strategies for integrated weed management. A competitive crop that establishes rapidly can effectively manage weed populations by utilizing resources before weeds emerge. Stale seedbeds, row spacing, shallow seeding, and proper nutrition can also give crops a competitive advantage over weeds.
19. .integrated weed management (weed management methods) A Presentation By...Mr.Allah Dad Khan
Integrated weed management aims to reduce weed pressure through the sustainable use of multiple control methods without harming farm profits or the environment. It emphasizes prevention, enhancing crop competition, and reducing weed density over sole reliance on herbicides. Methods include cultural, physical, chemical, and biological controls combined in a planned sequence tailored to the specific weed situation. The goal is minimizing herbicide usage and residues while managing weeds effectively and economically.
The document discusses weed management and control. It defines weed management as manipulating weeds so they do not interfere with crop growth. Weed control refers to actions that restrict weed spread and reduce populations. Weed prevention excludes new weed problems, while eradication completely removes weeds. Methods of control include cultural, biological, chemical and integrated approaches. Chemical weed control uses herbicides and was popularized by lower labor needs compared to manual control. Herbicides are classified based on application time, plant effects, and chemistry. Proper formulation improves herbicide handling, efficacy and safety.
Sustainable agriculture involves farming practices that meet current and future needs while ensuring environmental health, profitability, and social equity. It offers solutions to problems caused by industrial agriculture like depletion of resources and unequal food access. Key sustainable farming methods include using renewable energy, integrated pest management, crop rotation, agroforestry, and managed grazing. New technologies like artificial intelligence, biotechnology, drones, and blockchain can also help enable more sustainable agriculture.
Organic seeds are used to grow organic crops without synthetic chemicals. The main difference between organic and conventional seeds is that organic seeds are produced without synthetic pesticides and fertilizers. Organic seed production focuses on soil fertility through organic matter and cover crops while supporting beneficial insects. It requires crops to be grown without prohibited materials for three years and annual inspection. The market for organic products is expanding due to consumer concerns about the environment and pesticide residues.
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2. DEFINITION
• Weed management is a system approach whereby whole land
use planning is done in advance to minimize the invasion of
weeds in aggressive forms and give crop plants a very strong
competitive advantage over the latter.
3. • Different practices to control
• Preventive Measures
• Cultural
• Mechanical
• Biological
• Chemical (organically approved)
1. Preventive Weed Control:
• Preventative weed control refers to any control method that
aims to prevent weeds from being established in a cultivated
crop, a pasture, or a greenhouse.
4. 1. PREVENTIVE MEASURES
• Several preventive practices can be included in management programs:
1. Isolation of introduced livestock to prevent spread of weed seeds from their
digestive tract.
2. Use of clean farm equipment and cleaning of itinerant equipment, including
combines, cultivators, and grain trucks.
3. Cleaning irrigation water before it enters a field.
4. Mowing and other appropriate weed control practices to prevent seed
production on irrigation ditch banks.
5. Inspection of imported nursery stock for weeds, seeds, and vegetative
reproductive organs.
6. Inspection and cleaning of imported gravel, sand, and soil.
7. Special attention to fence lines, field edges, rights-of-way, railroads, and so
on as sources of new weeds.
8. Prevention of deterioration of range and pasture to stop easy entry of
invaders such as downy brome (Mack, 1981).
9. Seed dealers and grain handlers should clean crop seed and dispose of
cleanings properly.
10. Cleanings should be heated or ground to prevent seed dispersal.
11. Fields should be surveyed regularly to identify new weeds.
12. When identified, small patches of new weeds should be treated to prevent
growth and further dispersal.
5. 2. CULTURAL METHODS
• Cultural weed control refers to any technique that involves
maintaining field conditions such that weeds are less likely to
become established and/or increase in number.
• It involves following ways :
1. Crop rotation
2. Cover crops
3. Intercropping
4. Field Scouting
5. Mulching
6. Planting pattern
7. Varietal selection
8. Tillage system
9. Sanitation
10. Nitrogen fertilizers
11. Feed the crop, not the weed
12. Water management
6. Crop Rotation
• Crop rotation involves alternating different crops in a systematic
sequence on the same land.
• It is an important strategy for developing a sound long term weed
control program.
• Some weeds associate with certain crops more than with others. E.g.
Nightshades are common in potatoes, tomatoes, and beans,
• When diverse crops are used in a rotation, weed germination and
growth cycles are disrupted by variations in cultural practices
associated with each crop (tillage, planting dates, crop competition,
etc).
• E.g. 1. Rotate legumes with grasses.
2. Sugarbeet grown after beans in Colorado were always more
weed-free than sugarbeet grown after sugarbeet, barley, or corn
(Dotzenko et al., 1969).
7. Cover Crops
• Rapid development and dense ground covering by the crop
will suppress weeds.
• Cover crop residues on the soil surface will suppress weeds by
shading and cooling the soil.
• In addition, decomposing cover crop residues may release
allelo chemicals that inhibit the germination and development
of weed seeds.
• Examples of cover crops : rye, red clover, buckwheat, oilseed,
radish, forages etc.
8. Intercropping
• Intercropping involves growing a smother crop between rows
of the main crop. Intercrops are able to suppress weeds.
• However, the use of intercropping as a strategy for seed
control should be approached carefully.
• The intercrops can greatly reduce the yields of the main crop if
competition for water or nutrients occurs.
• For example
1. Winter rye sown in broccoli was successful only when sown
at high density.
2. Yellow mustard sown in Soyabean.
9.
10. Field Scouting
• It involves the systematic collection of weed and crop data
from the field (weed distribution, growth stage, population,
crop stage etc).
• The information is used, in the short term, to make immediate
weed management decisions to reduce or avoid economic
crop loss.
• In the long term, field scouting is important in evaluating the
success or failure of weed management programs and for
making sound decisions in the future.
11. Mulching
• Mulching or covering the soil surface can prevent weed seed
germination by blocking light transmission preventing seed
germination.
• There are Two types of mulches
1. Living mulch
• Living mulch is usually a pant species that grows densely and low to
the ground.
• Living mulches can be planted before or after a crop is established.
• A living mulch of Portulaca oleracea from broadcast before
transplanting broccoli suppressed weeds without affecting crop
yield.
2. Organic mulch
• Such materials as straw, bark, newspaper, hay and composted
material can provide effective weed control.
• Organic mulches have the advantage of being biodegradable.
• Cut rye grass mulch spread between planted rows of tomatoes and
peppers was more economic than cultivation.
12.
13.
14. Planting Patterns
• Crop population, spatial arrangement, and the choice of
cultivar (variety) can affect weed growth.
• Fr example, studies have shown that narrow row widths and a
higher seeding density will reduce the biomass of later-
emerging weeds by reducing the amount of light available for
weeds located below the crop canopy.
• Similarly, fast growing cultivars can have a competitive edge
over the weeds
15. Variety selection
• Careful selection of crop varieties is essential to limit weeds and
pathogen problems and to satisfy market needs.
• Any crop variety that is able to quickly shade the soil between the
rows and is able to grow more rapidly than the weeds will have an
advantage.
Tillage system
• Tillage systems alter the soil seed bank dynamics and depth of burial
of weed seeds.
• Studies have found that almost 75% of the seedbank was
concentrated in the upper 5 cm of soil in no-till fields.
• In the moldboard plough system however, the seedbank is more
uniformly distributed over depth. Other conservation tillage systems
are intermediate to these two systems.
• Weed seedling emergence is often more uniform shallow buried
weed seeds and may result in better weed control.
• Weed seeds closer to the soil are more likely to be eaten or
damaged by insects, animals, other predators and disease causing
organisms.
16. Sanitation
• It is possible to prevent many new weeds from being introduced onto the farm and to
prevent existing weeds from producing large quantities of seed.
• The use of clean seed, mowing weeds around the edges of fields or after harvest to
prevent weeds from going to seed, and thoroughly composting manure before
application can greatly reduce the introduction of weed seeds and difficult weed
species.
• It is even possible to selectively hand-eradicate isolated outbreaks of new weeds,
effectively avoiding future infestations.
• Planting clean, high-quality seed is essential to crop success.
• Other sanitation factors to consider would include thorough cleaning of any
machinery which might have been used in weedy fields, and the establishment of
hedgerows to limit windblown seeds.
Nitrogen fertility
• Nitrogen fertilizer can affect the competition between crops and weeds and in the
subsequent crops.
• For example, nitrate is known to promote seed germination and seed production in
some weed species.
• Nitrogen fertilization may result in increased weed growth instead of increased crop
yield.
• Selective placement of nitrogen in a band can favour the crop over the weed.
• Use of legume residues are opposed to chemical nitrogen fertilizer to supplement
nitrogen needs of the crop can enhance weed suppression.
• Legume resules release nitrogen slowly with less stimulation of unwanted weed
growth.
17. Feed the crop, not the weeds
• Avoiding pre-plant broadcasting of soluble nutrients that may
be more readily utilized by fast-growing weeds than slow-
growing crops, and may even stimulate weed germination.
• Applying fertilizer near the rows where it is more likely to be
captured by the crop.
• Expensive bagged organic fertilizer, may be applied low rates
at planting or sidedress, relying on mid-season release of
nutrients from compost and / or green manures for primary
fertility.
Water management
• Effective water management is key to controlling weeds in a
vegetable operation.
• There are a number of ways that careful irrigation
management can help you reduce weed pressure on your
crops
18. 3. Mechanical Weed Control
• These methods are most common non-chemical method of weed
control.
• Mechanical weed control refers to any technique that involves the
use of farm equipment to control weeds.
• The common methods are as follows
1. Hand weeding
2. Hand hoeing
3. Sickling
4. Mowing
5. Dredging: used to control aquatic weeds, mechanical pulling of
aquatic weeds along with their roots & rhizomes from the mud.
6. Burning
7. Flaming: It is the momentary exposure of green weeds to as high
as 1000o C from flame throwers to control in row weeds.
19.
20. 8. Soil Solarization:
• It is also called solar soil heating. It is effective against weeds
which are produced from seeds. It doesn’t involve any tillage
of the field.
• Covering the soil with transparent, very thin plastic sheets of
20-25mm polyethylene (PE) film during hottest part of
summer months for 2-4 weeks.
• This increases the temperature by 10-12 oC over unfilmed
control fields.
• Then weeds seeds are desiccated which are present at top 5
cm soil depth.
• Eg: Phaliris minor, Avene and broad leaved weeds controlled
by Solarization.
9. Cheeling: An implement called cheel (spade like implement
with very long handle) with which weeds & soil can be racked
up. Generally practiced in tea plantations.
10. Flooding
21.
22.
23. 4. Biological Weed Control
• Biological control would appear to be the natural solution for
weed control in organic agriculture.
a. Allelopathy:
• Allelopathy is the direct or indirect chemical effect of one
plant on the germination, growth or development of
neighboring plants.
• Vegetables, such as horseradish, carrot and radish, release
particularly powerful allelopathic chemicals from their roots.
b. Beneficial organisms:
• The most famous, a caterpillar (Cactoblastis sp.) to control
prickly pear.
• Geese have been used for weed control in trees, vine, and
certain row crops.
24.
25.
26. • Use of biocontrol agents for weed control
Name of the weed Bioagent
Cyperus rotundus Bactra verutana
Ludwigia parviflora Haltica cynea (Steel blue beetle)
Parthenism hysterophorus Zygrogramma bicolarata
Lantana camara Crocidosema lantana, Teleonnemia
scrupulosa
Opuntia dilleni Dactylopius tomentosus, D. Indicus (cochineal
scale insect)
Eichhornea crassipes Neochetina eichhornea, N. Bruchi (Hyachinth
weevil) Sameodes alliguttalis (hyancinth
moth)
Alternanthera
philoxaroides
Agasides hygrophilla (flea
beetle) Amynothrips andersoni
27. • Use of competitive plants for weed control
• Commercial mycoherbicides
Name of the weeds Competitive plants
Parthenium hysterophorus Cassia sericea
Typha sp Brachiaria mutica
Trade name Pathogen Target weed
Devine Phyophthora palmivora Morreria odorata (Strangler
vine) in citrus
Collego Colletotrichum gleosporoides f.sp.
aeschynomene
Aeschynomene
virginica (northen joint vetch) in
rice and soyabean
Biopolaris Biopolaris sorghicola Sorghum halepense (Johnson
grass)
LUBAO 11 Colletotrichum
gleosporoides f.sp. Cuscuttae
Cuscutta sp. (Dodder)
ABG 5003 Cercospora rodmanii Eichhornea crassipes (water
hyancinth)
28.
29. Herbicide/Chemical (organically
approved):-
Corn gluten meal (WeedBan and Corn Weed Blocker)
• It has been used successfully on lawns and high-value crops.
• pre-emergent herbicide.
Commonly based vinegar or lemon juice or clove oil ingredients
• Burnout : 23% acetic acid.
• Bioganic: 10% acetic acid plus clove oil and thyme oil.
• MATRAN & Weed Bye Bye etc
• post-emergent herbicides.