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1. The major group of activities for improving crop yield are

2. The science of crop production is called

3. The money spent by the farmer on crop production is called

4. The money obtained by selling the crop produce is called

5. Profit to the farmer depends on

6. The most important factor for obtaining high yield is

7. Crop production management can be done at how many levels?

8. The level of management that involves high input and high yield is called

9. The practice of growing crops on land is called

10. The type of farming that depends mainly on monsoon rainfall is

11. The process of supplying water to crops at regular intervals is known as

12. The water available to plants comes mainly from

13. The most common sources of irrigation water are

14. The two main types of irrigation systems are

15. In modern irrigation, the method that conserves water and reduces wastage is

16. Crops like paddy require

17. The addition of nutrients to the soil for crop growth is called

18. The natural substances added to soil to increase fertility are called

19. The unwanted plants that grow along with the main crop are called

20. The scientific storage of grains is important to