Crop production and management Worksheet-15

Crop production and management Worksheet-15

True or False:

1. The same kind of crop grown and cultivated at one place is field.

2. The crops sown in winter season are kharif.

3. The crops sown in rainy season are Rabi.

4. The process of separating grains from chaff using wind is called winnowing.

5. Large scale storage of grains is done in granaries.

6. Sprinkler is the method of irrigation in which water falls drop by drop at the roots of the crop.

7. Harvesting is done manually using sickle.

8. Weeding can be done both manually and using chemicals.

9. Organic manures are better compared to chemical fertilizers.

10. Chemical fertilizers supply all nutrients to the crop plant.

11. Organic fertilizers are obtained from dead remains of plants and animals.

12. The process of turning and loosening of soil is called threshing.

13. The last stage in the crop production is storage.

14. The first step in crop production is preparation of soil.

15. Animals can make their food themselves.

16. The energy from food is utilized by organisms for carrying out their various body functions

17. Cultivation of same kind of plants at one place is called crop.

18. The crops which are sown in the rainy season are called rabi crops

19. The time period of growing rabi crops ranges from October to March.

20. The loose soil allows the roots to breathe easily.

21. Paddy plants require a lot of water during their cultivation.

22. Plough contains a strong triangular iron strip called ploughshare.

23. Cultivator is used for removing weeds and for loosening the soil.

24. Traditional tool is method of sowing seed in field.

25. The organic manure is considered better than fertilizers.

26. The supply of water to crops at different intervals is called irrigation.

27. Pulley system and chain pump are Modern methods of irrigation.

28. Undesirable plants may grow naturally along with the crop called weeds.

29. The removal of unwanted plants from field is called weeding.

30. 2, 4-D is a weedicide.

31. The process of separating grain seeds from the chaff is called winnowing

Answer:

1. False

2. False

3. False

4. True

5. True

6. False

7. True

8. True

9. True

10. False

11. True

12. False

13. True

14. True

15. False: Plants can make their food themselves

16. True

17. True

18. False: The crops which are sown in the rainy season are called kharif crops.

19. True

20. True

21. True

22. True

23. False, hoe is used for removing weeds and for loosening the soil.

24. True

25. True

26. True

27. False; Pulley system and chain pump are traditional methods of irrigation.

28. True

29. True

30. True

31. False: The process of separating grain seeds from the chaff is called threshing.