B.Sc. Ag. 1st year nutient deficiency symptoms New Microsoft Office PowerPoint Presentation (4) (1).pptx
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Mineral nutrients are elements acquired by plants from the soil in inorganic ion form that are essential for plant growth and life cycle completion. Plants absorb mineral nutrients through their extensive root systems, acting as "miners of Earth's crust", and translocate the minerals throughout the plant where they serve numerous biological functions. Only certain elements have been determined to be essential nutrients for plants, with deficiencies preventing plant growth or development, and proper levels of essential nutrients along with sunlight allow plants to synthesize all necessary compounds for normal growth.
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Lecture 1.pptx
Mineral nutrients are essential elements obtained from the soil by plant roots and utilized for metabolism, growth, and development. These elements are absorbed, translocated throughout the plant, and participate in numerous biological functions with the help of mycorrhizal fungi and nitrogen-fixing bacteria. The study of how plants obtain and use these mineral nutrients is called mineral nutrition, which is important for agriculture and environmental protection as crop yields depend on fertilization. There are 17 essential mineral elements for plants, categorized as major/macronutrients which are required in large amounts or minor/micronutrients which are required in trace amounts. These elements have various functions as cell constituents, in osmotic pressure regulation, and catalytic/ant
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This document discusses soil fertility, soil productivity, and plant nutrients. It defines soil fertility as the inherent capacity of soil to supply essential plant nutrients, and soil productivity as the ability of soil to produce crop yields. It identifies the main categories of plant nutrients as macronutrients (nitrogen, phosphorus, potassium), secondary nutrients (calcium, magnesium, sulfur), and micronutrients (iron, copper, zinc, etc.). The document also discusses the various forms and criteria for establishing essential plant nutrients.
The importance of photosynthesis in the ecosystem
This document discusses the importance of photosynthesis to ecosystems. It begins by defining photosynthesis as the process by which plants and other organisms convert sunlight into chemical energy. It then defines an ecosystem as a community of living and non-living interactions. The document states that photosynthesis is important because it provides food for other organisms through the food chain, removes carbon dioxide from the atmosphere, and helps power industrial activities through plant materials.
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The document summarizes the nitrogen and phosphorus cycles. The nitrogen cycle is driven by bacteria that help nitrogen transition between different states so it can be used by plants. Plants then provide nitrogen to animals. The phosphorus cycle begins with weathering of rocks, which releases phosphates into soil and water. Plants uptake phosphates from the soil, and it moves through the food chain from plants to herbivores to carnivores. Phosphates return to the soil through excretion, urine, feces and decomposition.
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North Korea experienced a food crisis after losing support from the Soviet Union, which had previously provided chemicals and petroleum needed for agriculture. Without these imports, North Korea could no longer produce sufficient fertilizer, which is essential for supplying nitrogen and other nutrients to crops. Nitrogen is the nutrient most often limiting for plant growth, and industrial fertilizer production requires significant energy from petroleum. As a result, North Korea's farming system failed due to the lack of fertilizer inputs, leading the country to experience widespread starvation.
Decomposers
Decomposers are organisms such as bacteria and fungi that break down dead and decaying organisms through decomposition. They obtain energy, carbon, and nutrients from organic substrates and deceased organisms. Decomposers play an important role in ecosystems by recycling nutrients back into the environment through the decomposition process, which is essential for the nutrient cycles that all living things rely on.
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Lecture 1.pptx
Mineral nutrients are essential elements obtained from the soil by plant roots and utilized for metabolism, growth, and development. These elements are absorbed, translocated throughout the plant, and participate in numerous biological functions with the help of mycorrhizal fungi and nitrogen-fixing bacteria. The study of how plants obtain and use these mineral nutrients is called mineral nutrition, which is important for agriculture and environmental protection as crop yields depend on fertilization. There are 17 essential mineral elements for plants, categorized as major/macronutrients which are required in large amounts or minor/micronutrients which are required in trace amounts. These elements have various functions as cell constituents, in osmotic pressure regulation, and catalytic/ant
SOIL FERTILITY INTRODUCTION
This document discusses soil fertility, soil productivity, and plant nutrients. It defines soil fertility as the inherent capacity of soil to supply essential plant nutrients, and soil productivity as the ability of soil to produce crop yields. It identifies the main categories of plant nutrients as macronutrients (nitrogen, phosphorus, potassium), secondary nutrients (calcium, magnesium, sulfur), and micronutrients (iron, copper, zinc, etc.). The document also discusses the various forms and criteria for establishing essential plant nutrients.
The importance of photosynthesis in the ecosystem
This document discusses the importance of photosynthesis to ecosystems. It begins by defining photosynthesis as the process by which plants and other organisms convert sunlight into chemical energy. It then defines an ecosystem as a community of living and non-living interactions. The document states that photosynthesis is important because it provides food for other organisms through the food chain, removes carbon dioxide from the atmosphere, and helps power industrial activities through plant materials.
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The document summarizes the nitrogen and phosphorus cycles. The nitrogen cycle is driven by bacteria that help nitrogen transition between different states so it can be used by plants. Plants then provide nitrogen to animals. The phosphorus cycle begins with weathering of rocks, which releases phosphates into soil and water. Plants uptake phosphates from the soil, and it moves through the food chain from plants to herbivores to carnivores. Phosphates return to the soil through excretion, urine, feces and decomposition.
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North Korea experienced a food crisis after losing support from the Soviet Union, which had previously provided chemicals and petroleum needed for agriculture. Without these imports, North Korea could no longer produce sufficient fertilizer, which is essential for supplying nitrogen and other nutrients to crops. Nitrogen is the nutrient most often limiting for plant growth, and industrial fertilizer production requires significant energy from petroleum. As a result, North Korea's farming system failed due to the lack of fertilizer inputs, leading the country to experience widespread starvation.
Decomposers
Decomposers are organisms such as bacteria and fungi that break down dead and decaying organisms through decomposition. They obtain energy, carbon, and nutrients from organic substrates and deceased organisms. Decomposers play an important role in ecosystems by recycling nutrients back into the environment through the decomposition process, which is essential for the nutrient cycles that all living things rely on.
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Mineral nutrition, absoprtion & assimililation
This document discusses mineral nutrition and absorption in plants. It covers essential mineral nutrients, how they are absorbed by plant roots from the soil solution and transported throughout the plant. The key points are:
1) Plants require mineral nutrients which are absorbed from the soil by roots and transported via xylem to other plant parts.
2) There are 16 essential mineral nutrients grouped by their functions in plant metabolism and structure.
3) Nutrients are absorbed as ions by root hairs and transported through the root before loading into the xylem for long-distance transport.
4) Once in plant tissues, nutrients are assimilated into organic molecules to support plant growth and metabolism.
Components of ecosystem
The document summarizes the key components of an ecosystem. It describes abiotic components as non-living physical and chemical factors like air, water, soil, and basic elements. Biotic components are the living parts, including populations of animals, plants, and microbes. It outlines the relationships between these groups, with autotrophs (producers) converting inorganic materials to organic materials through photosynthesis, heterotrophs (consumers) feeding on autotrophs or other organisms, and saprotrophs (decomposers) breaking down dead organic matter and recycling nutrients.
Decomposers
Decomposers are organisms such as bacteria and fungi that break down dead or decaying organisms and recycle nutrients in an ecosystem. They carry out the natural process of decomposition by releasing enzymes that digest dead matter and make nutrients soluble and available to other organisms. Examples of decomposers include fungi, bacteria, earthworms, flies, and wasps. Without decomposers, dead organic material would accumulate in ecosystems.
The soil is an important medium that supports life to various plants.pdf
The soil is an important medium that supports life to various plants and animals. It forms an
intricate ecosystem where variety of living organisms survive which include earthworms,
nematodes, protozoans, fungi and collembolans (insects). Each of these organisms has their own
importance in the soil. Together they contribute in recycling of nutrients and makes the soil
fertile.The dead organic matter in soil, like plant residues act as carbon source for these organism
and are stored as biomass.
Earthworm makes the soil porous, which invites more air and water in soil. athey breakdown
dead organic matter into simpler forms, suitable for bacteria and fungi. They also help in mixing
of soil which adds to fertility of soil.
Bacteria and fungi further decompose and release nutrients into the soil. Bacteria called
Actinomycetes even digests the lignin and cellulose of plant residues into simple nutrients and
adds to soil.
Protozoa and nematodes mineralize nutrients and make them available for plants and other soil
organisms. Protozoans feed on bacteria and regulate bacteria and algae populations. Nematodes
too feed on bacteria and fungi and release nitrogen as ammonium ions that can be readily used
by plants.
Collembola, eats mycorrhizae on roots which stimulate the growth of the symbiont and improves
the growth of the plant. In addition to it, Collembola also consumes the pest fungi and reduces
diseases.
Solution
The soil is an important medium that supports life to various plants and animals. It forms an
intricate ecosystem where variety of living organisms survive which include earthworms,
nematodes, protozoans, fungi and collembolans (insects). Each of these organisms has their own
importance in the soil. Together they contribute in recycling of nutrients and makes the soil
fertile.The dead organic matter in soil, like plant residues act as carbon source for these organism
and are stored as biomass.
Earthworm makes the soil porous, which invites more air and water in soil. athey breakdown
dead organic matter into simpler forms, suitable for bacteria and fungi. They also help in mixing
of soil which adds to fertility of soil.
Bacteria and fungi further decompose and release nutrients into the soil. Bacteria called
Actinomycetes even digests the lignin and cellulose of plant residues into simple nutrients and
adds to soil.
Protozoa and nematodes mineralize nutrients and make them available for plants and other soil
organisms. Protozoans feed on bacteria and regulate bacteria and algae populations. Nematodes
too feed on bacteria and fungi and release nitrogen as ammonium ions that can be readily used
by plants.
Collembola, eats mycorrhizae on roots which stimulate the growth of the symbiont and improves
the growth of the plant. In addition to it, Collembola also consumes the pest fungi and reduces
diseases..
Mineral nutrition, Manures and fertilizers
Mineral nutrition refers to the process by which plants absorb essential chemical elements from the soil as inorganic ions through their roots. Plants need 16 essential elements for growth and life cycle completion, categorized as macro and micro nutrients. Macro nutrients like nitrogen, phosphorus, and potassium are required in large quantities, while micro nutrients like iron and zinc are needed in small amounts. Nutrient availability is influenced by soil properties like pH and microorganism activity, as well as additions of fertilizers, manure, and green manure.
What are Factors that influence primary production in different zone.pdf
What are Factors that influence primary production in different zones of oceans and lakes
Solution
Organisms that synthesise the organic elements of life from the inorganic molecules are known
as \"primary producers.\" Plants, certain bacteria and algae are autotrophs (they feed themselves
by photosynthesis). Photosynthesis is a process through which plants use sun energy for the
production of organic material. Plants utilise necessary amount of sunlight for photosynthesis.
The major factors affecting the primary production in different zones of oceans and lakes are,
1). Availability of Sun light
2). Mineral nutrients
In contrast, the terrestrial plants have the limitations of water supply and uniform temperature.
As the aquatic plants and organisms live in the water itself, they do not suffer from water
scarcity. Also, temperature is uniform due to the heat capacity of water..
Bio ecos w3
The biosphere consists of the interacting living and nonliving parts of the Earth, including the atmosphere, hydrosphere, and lithosphere. Biomes are the major global communities of plants and animals defined by common climate and geography. Terrestrial biomes like forests, grasslands, and deserts vary with latitude, elevation, moisture, and temperature regimes. An ecosystem is a functional unit comprising interacting living and nonliving components, including producers, consumers, decomposers, and abiotic factors. Solar energy is the primary driver of ecosystem dynamics.
Organic farming
The document discusses the essential nutrients required for plant growth, including carbon, nitrogen, phosphorus, potassium, hydrogen, oxygen, magnesium, sulfur, and micronutrients. It explains the roles of each nutrient, how plants obtain each one, and the importance of replacing nutrients removed from the soil through harvesting. Key points made are that carbon is required both from air and soil, nitrogen comes from soil and fertilizers, and phosphorus, potassium and micronutrients must be replaced through manure or fertilizers since they are not naturally replenished. Proper nutrient management is essential for maximum plant growth and crop yields.
PLANTS
Plants have three vital functions: nutrition, reproduction, and interaction. They are characterized by limited mobility, making their own food through photosynthesis using soil, water, sunlight, minerals and air. The life cycle of a plant involves germination, growth, reproduction, and death. Plants have parts like leaves that use sunlight for photosynthesis, stems that provide structure and support, roots that take in water and minerals from the soil, and flowers where seeds are formed for reproduction.
Unit 6 diagram (1)
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Humans are responsible for most recent biodiversity loss through activities like climate change, pollution, overhunting, and habitat alteration. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Unit 6 diagram
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Human activities like climate change, pollution, overexploitation of resources and habitat alteration are responsible for most recent biodiversity loss through species extinction. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Unit 6 diagram (1)
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Human activities like climate change, pollution, overexploitation of resources and habitat alteration are responsible for most recent biodiversity loss through species extinction. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Soil microorganisms
Soils give a mechanical support to plants from which they extract nutrients. soil provides shelters for many animal types, from invertebrates such as worms and insects up to mammals like rabbits, moles, foxes and badgers. It also provides habitats colonised by a staggering variety of microorganisms. This module is about the microbial life in soils.
Parts of plant
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Ecosystem
The document discusses the history and structure of ecosystems. It defines an ecosystem as a complex unit of living and non-living things that interact and exchange materials. Ecosystems have biotic components like producers, consumers, and decomposers, as well as abiotic components like soil, water, and nutrients. Producers use photosynthesis to convert sunlight into chemical energy, which consumers then use as food and decomposers break down dead remains, recycling nutrients for producers. Energy and matter flow through the ecosystem via these interactions and components.
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This document provides an overview of plant nutrition principles and their effects on crop and land management. It discusses the 16 essential plant nutrients, including their functions, mobility within plants, and deficiency/toxicity symptoms. Macronutrients such as nitrogen, phosphorus, and potassium make up the majority of plant matter and are required in large quantities. Micronutrients are needed in small amounts but are still essential. Understanding plant nutrient requirements can help inform soil amendments and fertilizer use to optimize crop growth and yields while maintaining soil quality.
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Similar to B.Sc. Ag. 1st year nutient deficiency symptoms New Microsoft Office PowerPoint Presentation (4) (1).pptx
Mineral nutrition, absoprtion & assimililation
This document discusses mineral nutrition and absorption in plants. It covers essential mineral nutrients, how they are absorbed by plant roots from the soil solution and transported throughout the plant. The key points are:
1) Plants require mineral nutrients which are absorbed from the soil by roots and transported via xylem to other plant parts.
2) There are 16 essential mineral nutrients grouped by their functions in plant metabolism and structure.
3) Nutrients are absorbed as ions by root hairs and transported through the root before loading into the xylem for long-distance transport.
4) Once in plant tissues, nutrients are assimilated into organic molecules to support plant growth and metabolism.
Components of ecosystem
The document summarizes the key components of an ecosystem. It describes abiotic components as non-living physical and chemical factors like air, water, soil, and basic elements. Biotic components are the living parts, including populations of animals, plants, and microbes. It outlines the relationships between these groups, with autotrophs (producers) converting inorganic materials to organic materials through photosynthesis, heterotrophs (consumers) feeding on autotrophs or other organisms, and saprotrophs (decomposers) breaking down dead organic matter and recycling nutrients.
Decomposers
Decomposers are organisms such as bacteria and fungi that break down dead or decaying organisms and recycle nutrients in an ecosystem. They carry out the natural process of decomposition by releasing enzymes that digest dead matter and make nutrients soluble and available to other organisms. Examples of decomposers include fungi, bacteria, earthworms, flies, and wasps. Without decomposers, dead organic material would accumulate in ecosystems.
The soil is an important medium that supports life to various plants.pdf
The soil is an important medium that supports life to various plants and animals. It forms an
intricate ecosystem where variety of living organisms survive which include earthworms,
nematodes, protozoans, fungi and collembolans (insects). Each of these organisms has their own
importance in the soil. Together they contribute in recycling of nutrients and makes the soil
fertile.The dead organic matter in soil, like plant residues act as carbon source for these organism
and are stored as biomass.
Earthworm makes the soil porous, which invites more air and water in soil. athey breakdown
dead organic matter into simpler forms, suitable for bacteria and fungi. They also help in mixing
of soil which adds to fertility of soil.
Bacteria and fungi further decompose and release nutrients into the soil. Bacteria called
Actinomycetes even digests the lignin and cellulose of plant residues into simple nutrients and
adds to soil.
Protozoa and nematodes mineralize nutrients and make them available for plants and other soil
organisms. Protozoans feed on bacteria and regulate bacteria and algae populations. Nematodes
too feed on bacteria and fungi and release nitrogen as ammonium ions that can be readily used
by plants.
Collembola, eats mycorrhizae on roots which stimulate the growth of the symbiont and improves
the growth of the plant. In addition to it, Collembola also consumes the pest fungi and reduces
diseases.
Solution
The soil is an important medium that supports life to various plants and animals. It forms an
intricate ecosystem where variety of living organisms survive which include earthworms,
nematodes, protozoans, fungi and collembolans (insects). Each of these organisms has their own
importance in the soil. Together they contribute in recycling of nutrients and makes the soil
fertile.The dead organic matter in soil, like plant residues act as carbon source for these organism
and are stored as biomass.
Earthworm makes the soil porous, which invites more air and water in soil. athey breakdown
dead organic matter into simpler forms, suitable for bacteria and fungi. They also help in mixing
of soil which adds to fertility of soil.
Bacteria and fungi further decompose and release nutrients into the soil. Bacteria called
Actinomycetes even digests the lignin and cellulose of plant residues into simple nutrients and
adds to soil.
Protozoa and nematodes mineralize nutrients and make them available for plants and other soil
organisms. Protozoans feed on bacteria and regulate bacteria and algae populations. Nematodes
too feed on bacteria and fungi and release nitrogen as ammonium ions that can be readily used
by plants.
Collembola, eats mycorrhizae on roots which stimulate the growth of the symbiont and improves
the growth of the plant. In addition to it, Collembola also consumes the pest fungi and reduces
diseases..
Mineral nutrition, Manures and fertilizers
Mineral nutrition refers to the process by which plants absorb essential chemical elements from the soil as inorganic ions through their roots. Plants need 16 essential elements for growth and life cycle completion, categorized as macro and micro nutrients. Macro nutrients like nitrogen, phosphorus, and potassium are required in large quantities, while micro nutrients like iron and zinc are needed in small amounts. Nutrient availability is influenced by soil properties like pH and microorganism activity, as well as additions of fertilizers, manure, and green manure.
What are Factors that influence primary production in different zone.pdf
What are Factors that influence primary production in different zones of oceans and lakes
Solution
Organisms that synthesise the organic elements of life from the inorganic molecules are known
as \"primary producers.\" Plants, certain bacteria and algae are autotrophs (they feed themselves
by photosynthesis). Photosynthesis is a process through which plants use sun energy for the
production of organic material. Plants utilise necessary amount of sunlight for photosynthesis.
The major factors affecting the primary production in different zones of oceans and lakes are,
1). Availability of Sun light
2). Mineral nutrients
In contrast, the terrestrial plants have the limitations of water supply and uniform temperature.
As the aquatic plants and organisms live in the water itself, they do not suffer from water
scarcity. Also, temperature is uniform due to the heat capacity of water..
Bio ecos w3
The biosphere consists of the interacting living and nonliving parts of the Earth, including the atmosphere, hydrosphere, and lithosphere. Biomes are the major global communities of plants and animals defined by common climate and geography. Terrestrial biomes like forests, grasslands, and deserts vary with latitude, elevation, moisture, and temperature regimes. An ecosystem is a functional unit comprising interacting living and nonliving components, including producers, consumers, decomposers, and abiotic factors. Solar energy is the primary driver of ecosystem dynamics.
Organic farming
The document discusses the essential nutrients required for plant growth, including carbon, nitrogen, phosphorus, potassium, hydrogen, oxygen, magnesium, sulfur, and micronutrients. It explains the roles of each nutrient, how plants obtain each one, and the importance of replacing nutrients removed from the soil through harvesting. Key points made are that carbon is required both from air and soil, nitrogen comes from soil and fertilizers, and phosphorus, potassium and micronutrients must be replaced through manure or fertilizers since they are not naturally replenished. Proper nutrient management is essential for maximum plant growth and crop yields.
PLANTS
Plants have three vital functions: nutrition, reproduction, and interaction. They are characterized by limited mobility, making their own food through photosynthesis using soil, water, sunlight, minerals and air. The life cycle of a plant involves germination, growth, reproduction, and death. Plants have parts like leaves that use sunlight for photosynthesis, stems that provide structure and support, roots that take in water and minerals from the soil, and flowers where seeds are formed for reproduction.
Unit 6 diagram (1)
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Humans are responsible for most recent biodiversity loss through activities like climate change, pollution, overhunting, and habitat alteration. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Unit 6 diagram
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Human activities like climate change, pollution, overexploitation of resources and habitat alteration are responsible for most recent biodiversity loss through species extinction. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Unit 6 diagram (1)
The biosphere is the largest ecosystem, consisting of planet Earth and all living things inhabiting it. Within ecosystems, producers like plants generate food from sunlight, water and minerals, consumers eat other organisms, and decomposers break down dead plants and animals, returning minerals to the soil. Food chains show how species are connected through predator-prey relationships, while food webs combine multiple food chains. Human activities like climate change, pollution, overexploitation of resources and habitat alteration are responsible for most recent biodiversity loss through species extinction. National parks and biosphere reserves aim to protect endangered wildlife and environments.
Soil microorganisms
Soils give a mechanical support to plants from which they extract nutrients. soil provides shelters for many animal types, from invertebrates such as worms and insects up to mammals like rabbits, moles, foxes and badgers. It also provides habitats colonised by a staggering variety of microorganisms. This module is about the microbial life in soils.
Parts of plant
the 5 important parts of the plant are described briefly roots stem leaves flower and fruit with large images after each part and the importance of plant in our environment is given
SAC101 Unit 5 Lecture.pptx
The document provides information about the fundamentals of soil science. It discusses 5 units that cover topics like soil formation, physical properties, water and air movement in soil, reaction and pH, colloids, organic matter, soil organisms, and pollution. Unit 5 discusses how soil organisms can have both beneficial and harmful effects, and how pollution affects soil through pesticides and other contaminants. Prevention of pollution includes reducing deforestation and proper waste management.
Ecosystem
The document discusses the history and structure of ecosystems. It defines an ecosystem as a complex unit of living and non-living things that interact and exchange materials. Ecosystems have biotic components like producers, consumers, and decomposers, as well as abiotic components like soil, water, and nutrients. Producers use photosynthesis to convert sunlight into chemical energy, which consumers then use as food and decomposers break down dead remains, recycling nutrients for producers. Energy and matter flow through the ecosystem via these interactions and components.
SOIL FERTILITY
This document provides an overview of plant nutrition principles and their effects on crop and land management. It discusses the 16 essential plant nutrients, including their functions, mobility within plants, and deficiency/toxicity symptoms. Macronutrients such as nitrogen, phosphorus, and potassium make up the majority of plant matter and are required in large quantities. Micronutrients are needed in small amounts but are still essential. Understanding plant nutrient requirements can help inform soil amendments and fertilizer use to optimize crop growth and yields while maintaining soil quality.
YoyoScience Grade1 Science Notes: LS1.A
YoyoScience Grade1 Science Notes: LS1.AYoyoScience: Science practice & Games app on iOS for Science K-1, K-2, K-3, K-4, and K-5 as per NGSS
The document discusses key concepts about plants for grade 1 science, including that plants are living things that cannot move, produce their own food through photosynthesis, have roots that absorb water and nutrients, stems that transport water and nutrients, and leaves that are the site of photosynthesis. It also discusses pollination, respiration, transpiration, seeds, and the roles of flowers, fruits, and stems. An upcoming grade 1 science app is described that will teach these concepts through a game with 20 levels covering the four science streams.Structure and function of ecosystem 1
An ecosystem consists of all the living organisms in a given area along with the abiotic components they interact with, like air, water, soil and sunlight. The structure of an ecosystem includes the biological communities and distribution of organisms, as well as the quantity and distribution of non-living resources. The functions of an ecosystem include nutrient cycling through food chains and webs, energy flow, and processes like primary production and decomposition that allow the ecosystem to function as a self-sustaining unit.
EcoSystem.pdf
The document discusses various types of ecosystems including forest, grassland, and aquatic ecosystems. It defines key ecosystem concepts such as producers, consumers, decomposers, food chains, and food webs. It also describes the abiotic and biotic components of ecosystems and their interactions, and provides examples of different forest ecosystems around the world including tropical rainforests, tropical deciduous forests, and temperate deciduous forests. Structures and functions of forest ecosystems like energy flow and nutrient cycling are also summarized.
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