The following are important:
1. Growing crops which need less water
2. Increasing organic carbon or organic matter in soil using plant residues and animal manures
3. Dicouraging plantation of trees which take more water e.g. eucliptus
4. Decreasing land degradation especially decreasing erosion. Degraded land store less water than fertile lands.
5. Contouring on slope soils
6. Mulching
7. Deep tillage in some areas increase water infiltration in the soil
8. Cover crops conserve soil moisture
9. Drip and sprinkler irrigation use less water than flood irrigation
10. Subsurface irrigation
11. Cleaning waste water
12. Use less water for cars cleaning
13. Use less water for animal's cleaning
14. Ridge and bed plantation use 50÷ less water than flat plantation
15. Cementing water channels
16. Removing weeds which transpire more
17. Big dams and small dams
18. Conservation of runoff water
19. Application of potassium in field crops
20. Use of benificial microbes in field crops production
Etc.
Amanullah
Associate Professor of Agronomy The University of Agriculture Peshawar PAKISTAN
Проф. Dr. Amanullah