Conservation Tillage. Conservation tillage consists of a variety of practices used in agriculture to reduce wind and water erosion. ... Contour Farming. ... Strip Cropping. ... Windbreaks. ... Crop Rotation. Cover Crops. Buffer Strips Grassed Waterways

1. Soil water conservation techniques
Submitted to:-
(A. P) Mr. Bishal kr mishra
Submitted by :-
Dharmendra kr
bsc. Agri. 6th sem.

2. Contents
1. Introduction
2. Measures.
• Agronomical measure
• Mechanical measures.
3.Agrostologic
method

3. Agronomical measures
• Low rainfall area
• fairly erosion resistance soil
• slope <2%
Measures
1. Land preparation
• Post harvest tillage influence intake of water.
• Obstruction of surface flow and consequently the rate
of erosion.
• Deep ploughing.
• Rough clody surface

4. Conture cropping
• A line joining the points of equal elivation is called conture
• slope 2 to10%
• All cultural practices done
across the slope. Ridge and
furrow act as obstruction to
runoff and provide more
time to water enter into soil
and lead to less water loss.

5. strip cropping
• where slope is very long.
• Ordinary crops are growing in form of relatively
narrow strip across the slope.
selection of crops
• Erosion permiting crop
• Erosion resistance crop

6. Crop rotation
• Mono cropping of erosion permiting crop accelerate soil
erosionand water loss year per year.
• Intercropping of erosion resistance crop and erosion
permiting crop rotation .
Effective in soil have 13 % slope also

7. Cover crop
• good ground cover like umbrella minimise erosion
• moisture conserveand hold soluble nutrients.
• ex. Horse gram , green gram , black gramm.

8. other agronomical measures
• Mulching
• Application of Manure

9. Mechanical or engineering measure
Construction of mechanical barrier across the direction of rain flow.
Slope >2%
Measures
1. Conture bunding
• Recommended for area have
...
• rainfall<600mm
• Slope2%-10%

11. Graded bund
Suitable for..
• 6 to 8 % slope
• rainfall>600 mm
• deep black soil
When a grade is provided along the bund for safe disposal of
runoff water over the area with two consecutive bunds

12. Bench terracing
• Done in steep slope , slope lenth us not adequate for reducing
the intensity of scouring action runoff flowing down.
• Slope>14%or 16 to 33%
• Transforming relatively
steep land into a seris
of levelstrip ir
platforms across th
slope to reduce the
slope length and
erosion .

13. Agrostologic
method
Grasses are used to prevent soil erosion by intercepting rainfall, binding
the soil particles and by improving soil structure.
• Grasses are used to stabilize the surface of
waterways, contour bunds, bench terraces
etc.
• Further, grasses improve, the soil structure,
porosity, infiltration and also add organic
matter to the soil.
• A good example of grass–legume
association is Cenchrus ciliaris +
Stylosanthes hamata.

14. Thank you