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.