Surface irrigation methods like furrow and border strip irrigation distribute water over soil surfaces using gravity. Furrow irrigation involves making small channels along slopes for water to flow down, while border strip irrigation uses longer borders oriented with slopes. These methods are suited for row crops but often result in non-uniform water distribution and issues like waterlogging or salinity if not properly managed through drainage and controlling water amounts. Drip and sprinkler irrigation use pipes and emitters to supply water directly to plant roots, allowing more control and efficiency. The appropriate irrigation method depends on factors like crop type, water source, and land characteristics.
Topics:
1, Introduction to Irrigation
2. Methods of Irrigation
3. Indian Agricultural Soils
4. Methods of Improving Soil Fertility & Crop Rotation
5. Soil-Water-Plant Relationship
6. Duty and Delta
7. Depth and Frequency of Irrigation
8. Irrigation Efficiency and Water Logging
Topics:
1, Introduction to Irrigation
2. Methods of Irrigation
3. Indian Agricultural Soils
4. Methods of Improving Soil Fertility & Crop Rotation
5. Soil-Water-Plant Relationship
6. Duty and Delta
7. Depth and Frequency of Irrigation
8. Irrigation Efficiency and Water Logging
Basic Presentation to Understand Irrigation Engineering. Prepared according to Mumbai University Syllabus. Definition. Necessity. Advantages. Disadvantages. Types. Techniques. Thank You.
the present ppt describes about irrigation methods following from the ancient periods to up to now. the present ppt also describes about sprinkler and drip irrigation methods. it gives an elaborate knowledge on irrigation methods.
Most conscious homeowners carefully choose proper irrigation systems in their home lawn these days as it increases aesthetics and curb appeal. Moreover, irrigation systems are a great way to help in the growth of agricultural crops, maintenance of landscapes, etc to avoid frequent irrigation repair.
different irrigation methods
methods of irrigation system
irrigation methods
farm irrigation sprinkler systems
sprinkler valves troubleshooting
agricultural irrigation sprinkler heads
irrigation sprinkler design calculations
drip irrigation micro sprinklers
sprinkler irrigation system pdf
irrigation system reviews
field irrigation sprinklers
simple irrigation methods
methods of irrigation in agriculture
four types of irrigation
types of wells for irrigation
types of water irrigation systems
methods of irrigation pdf
4 types of irrigation techniques
types of irrigation methods
type of irrigation
types of water irrigation systems
different irrigation methods
traditional method of irrigation
types of irrigation wells
Basic Presentation to Understand Irrigation Engineering. Prepared according to Mumbai University Syllabus. Definition. Necessity. Advantages. Disadvantages. Types. Techniques. Thank You.
the present ppt describes about irrigation methods following from the ancient periods to up to now. the present ppt also describes about sprinkler and drip irrigation methods. it gives an elaborate knowledge on irrigation methods.
Most conscious homeowners carefully choose proper irrigation systems in their home lawn these days as it increases aesthetics and curb appeal. Moreover, irrigation systems are a great way to help in the growth of agricultural crops, maintenance of landscapes, etc to avoid frequent irrigation repair.
different irrigation methods
methods of irrigation system
irrigation methods
farm irrigation sprinkler systems
sprinkler valves troubleshooting
agricultural irrigation sprinkler heads
irrigation sprinkler design calculations
drip irrigation micro sprinklers
sprinkler irrigation system pdf
irrigation system reviews
field irrigation sprinklers
simple irrigation methods
methods of irrigation in agriculture
four types of irrigation
types of wells for irrigation
types of water irrigation systems
methods of irrigation pdf
4 types of irrigation techniques
types of irrigation methods
type of irrigation
types of water irrigation systems
different irrigation methods
traditional method of irrigation
types of irrigation wells
surface irrigation systems and methods of irrigation inluding basine irrigation,border irrigartion,and furrow irrigation.there are alos presurizez irrigation systems such as drip irrigation and sprinler irrigation
Irrigation development in India, necessity, scope, benefits
and ill effects of irrigation, types of irrigation systems, methods of irrigation, physical
and chemical properties of soils, soil nutrients, classification of irrigable soils, suitability
of soils for irrigation, quality of irrigation water, soil water plant relations in irrigation,
measurement of soil moisture, field capacity, wilting point, available water , hydraulic
conductivity, water movement through soils.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2. • Water is a critical requirement for crop production.
• For optimum crop production, moisture must be supplied in right
amounts and at right times. In certain regions, crops are entirely rain-fed,
and so they need no supplemental moisture supply for their growth and
development.
• However, summer crops require additional water supply for commercial
production.
• Many horticultural crops and ornamentals require a good supply of water
for high yield and superior quality.
• High-value crop production often relies on artificial moisture
supplementation.
• For small gardens, additional moisture may be delivered by using
buckets and watering cans. A garden hose may also be used for
watering garden crops.
• A continuous moisture supply for a given period is provided by a variety
of methods. Some of such methods are employed for large-scale
production and the others for small-scale production.
3. Methods of irrigation
• The method of irrigation, employed in a particular situation, depends on
several factors, such as the nature of the crop, source of water, slope of
the land, rainfall regime of the region, crop rotation, surface of the land,
etc.
• There are three general methods for supplying supplemental moisture to
plants, namely drip irrigation or trickle irrigation, sprinkler irrigation, and
gravity irrigation or surface irrigation.
• In sprinkler and drip irrigations, a pump may be required to move water
through pipes.
• But, gravity systems depend on the slope of the land to move water.
• G irrigation requires initial land preparation, such as leveling of the land
(in fi irrigation) or digging of ditches (in furrow irrigation).
5. • This is the spot irrigation system in which minute amounts of water may be
sun. plied to plants almost continuously throughout the growing period.
• It is economical and highly desirable in areas where water availability is
limited.
• Plastic pipes with emitters are used to deliver water.
• Drip irrigation is especially desirable for high value crops that require uniform
soil moisture for good development.
• For example, when tuber crops, such as potatoes, are grown under conditions
of fluctuating moisture levels, tuber formation will be irregular, leading to low
market value.
6. Merits of drip irrigation
1. Saves water to the extent of 30 to 50 percent.
2. Increases the yield.
3. Reduces weed growth.
4. Lowers labour cost.
5. Causes the early maturing of crop due to the absence of moisture
stress.
6. Improves the quality of the produce.
8. • Sprinkler irrigation is a method of irrigation that mimics rainfall by supplying
moisture from above.
• Its equipment may be as simple as a lawn sprinkler or garden sprinkler, or may
be a self-propelled system used in large commercial farms.
• The sprinkler system consists of portable or fixed pipes.
• Sprinklers are desirable in soils with high infiltration rates or uneven surfaces.
• Sprinklers are also used where irrigation is not the primary source of moisture
for crop growth.
• In this case, a portable irrigation system may be transported to the area when
needed.
10. • This is the irrigation in which water is distributed over the soil surface by
gravity.
• It is the commonest form of irrigation and it has been in practice over
thousands of years in many parts of the world.
• Surface irrigation is often referred to as flood irrigation, implying that water
distribution is not under control and hence inefficient.
• In reality, some of the irrigation practices grouped under this category involve
a significant degree of management.
• Surface irrigation is of three major types, namely level basin flood irrigation,
furrow irrigation and border strip irrigation or bay irrigation.
• These methods are not ideal for sandy soils or the soils that have high
infiltration rate, especially if water is to be moved over long distances.
• Flood irrigation is commonly used in orchards.
• Furrow irrigation is a version of flood irrigation in which the surface low is
limited to channels between ridges.
• Vegetable gardens may be irrigated in this way.
12. • Level basin irrigation has been conventionally used in small areas having to
surface that are surrounded by earth banks.
• Water is applied rapidly to the entire basin and is allowed to infiltrate.
• Basins may be linked sequentially so that drainage from one basin is diverted
into the next, until the desired soil water deficit is satisfied.
• From a "closed" type of basin, no water normally drains out.
• Basin irrigation is favored in soils with relatively low infiltration rates.
14. • Furrow irrigation involves making small parallel channels along the field length
in the direction of predominant slope.
• Water is applied to the top end of each furrow and allowed to flow down the
field under the influence of gravity.
• Water may be supplied using gated pipe or siphon.
• The speed of water movement is determined by many factors such as slope,
surface roughness, furrow shape, and most importantly the inflow rate and soil
infiltration rate.
• The spacing between adjacent furrows depends on crop species.
• Common spacing typically ranges from 0.75 to 2 metres.
• The crop is planted on the ridge between furrows either in a single row, or in
several rows.
• Furrows may range from 100 m to 2000 m in length, depending on the soil
type, location, and crop type.
15. • Furrow irrigation is particularly suited for raw crops, such as cotton, maize and
sugarcane.
• It is also practiced in the horticultural fields of citrus, stone-fruit and tomato.
• In furrow irrigation, water may take a considerable period of time to reach the
other end.
• So, water may infiltrate for a longer period of time at the top end of the field.
• This causes less uniformity, with high application of water at the top end and low
application at the bottom end.
• In most cases, the performance of furrow irrigation can be improved through
increasing the speed (the advance rate) at which water moves along the field.
• This can be achieved either through increasing the flow rate or through adopting
surge irrigation.
16. • Increasing the advance rate not only improves the uniformity, but also reduces
the total volume of water required to complete the irrigation.
• Surge irrigation is a variant of furrow irrigation.
• In this case, water supply is pulsed on and off in planned time periods (e.g., on
for 12 hour, and off for 2 hour)
• The wetting and drying cycles reduce infiltration rates resulting in faster
advance rates and higher uniformities than continuous flow.
• The reduction in infiltration results from surface consolidation, filling of cracks
and micropores, disintegration of soil particles during rapid wetting, and the
consequent surface sealing during the drying phase.
• The effectiveness of surge irrigation depends on soil type.
• For example, many clayey soils experience a rapid sealing behaviour under
continuous flow so that surge offers little or no benefit.
18. • Border strip irrigation, or bay irrigation, could be considered as a hybrid of
level basin irrigation and furrow irrigation.
• The borders of the irrigated strips are longer and the strips are narrower than
in basin irrigation.
• Also, they are oriented lengthwise to align with the slope of the field.
• Water is applied to the top end of the bay, which is usually constructed to
facilitate free-flowing conditions at the downstream end.
• The common use of this technique is the irrigation of pastures for dairy
production.
19. Issues associated with surface irrigation
• Surface irrigation can be carried out effectively using the right management
under the right conditions.
• Still, it is often associated with a number of issues which undermine
productivity and environmental sustainability.
• Some of such issues are the following:
1. Waterlogging delays the further growth of plants, until sufficient water drains
from the root zone. Waterlogging may be countered by drainage.
2. Overirrigation may cause water to move below the root zone resulting in the
rising of the water table. In regions with naturally occurring saline soil layers,
the rising water table may bring salt to the root zone, leading to problems of
irrigation salinity.
3. Irrigation water may add significant amounts of salts to the soil profile. Lack
of subsurface drainage may restrict the leaching of these salts from the soil.
This can be solved by proper drainage and soil salinity control.