Crop Production and Management Important Questions And Answers
Students who are preparing for class 8 board exam or other competitive exams, all those students are given important questions and answers related to class 8th crop production and management. These questions have been asked earlier in the board 8th exam as well. If you want to know the important questions asked in the exam, then in this post below you are given important questions and answers of Class 8th Science crop production and management. Memorize them well. Students, with the help of the given questions, you can prepare for your exam even better.
Question 1. What are pests?
Answer: Pests are organisms that destroy crops.
Question 2. What are pesticides?
Answer: Pesticides are chemicals that destroy pests.
Question 3. Name any two pests.
Answer: Locust, Grasshopper.
Question 4. What is harvesting?
Answer: Harvesting is the process of cutting ripe crops.
Question 5. How long does a crop usually take to mature?
Answer: A crop usually takes 3-4 months to mature.
Question 6. Write the names of festivals related to the harvesting season.
Answer: (i) Pongal (ii) Baisakhi (iii) Holi (iv) Diwali (v) Nabanya (vi) Bihu.
Question 7. What are weedicides?
Answer: Weedicides are chemical substances sprayed on fields to remove and control the growth of weeds.
Question 8. What is animal husbandry?
Answer: Animal husbandry is the study of providing food, housing, and proper care for domesticated animals.
Question 9. What is a crop?
Answer: A crop is the cultivation of plants of the same kind in one place.
Question 10. Name two main crops of the country.
Answer: Wheat, Rice.
Question 11. What is produce?
Answer: Produce refers to the substances obtained after growing crops in fields or water.
Question 12. How are crops classified based on seasons?
Answer: Crops are classified as Rabi and Kharif crops.
Question 13. On which monsoon does the Kharif crop depend?
Answer: South-West Monsoon.
Question 14. What is a Kharif crop?
Answer: A crop grown from June to October is called a Kharif crop, e.g., Rice, Maize.
Question 15. What is a Rabi crop?
Answer: A crop grown from November to April is called a Rabi crop. It does not depend on the monsoon, e.g., Wheat, Gram.
Question 16. What are agricultural practices?
Answer: Agricultural practices are activities performed by farmers in a timely manner to grow crops.
Question 17. What are implements?
Answer: Tools used in agricultural practices are called implements.
Question 18. What do plants absorb from the soil?
Answer: Water and minerals.
Question 19. Why is plowing necessary before growing crops?
Answer: Plowing makes the soil porous, allowing air to spread and increasing its moisture retention capacity.
Question 20. Which tool is used to level the land?
Answer: Plank.
Question 21. Name three crops grown from seeds.
Answer: Wheat, Maize, Barley.
Question 22. Name two crops grown from the vegetative parts of plants.
Answer: Potato, Sugarcane.
Question 23. Why do seeds sown at greater depths not germinate?
Answer: Because moisture and air are not available at greater depths.
Question 24. What is sowing?
Answer: Sowing is the process of scattering seeds in the field by hand.
Question 25. How is a seed drill helpful for sowing?
Answer: A seed drill helps sow seeds at the proper depth.
Question 26. What is a nursery?
Answer: A nursery is a small area where young plants grown from seeds are uprooted and transplanted into fields.
Question 27. For which crop is standing water necessary at the time of sowing?
Answer: Rice.
Question 28. Define irrigation.
Answer: Irrigation is the process of providing water to plants at regular intervals.
Question 29. What harm is caused by giving excess water to the crop?
Answer: Excess water reduces the air content in the soil, causing roots to perish.
Question 30. What is the cause of waterlogging?
Answer: Excess irrigation.
Question 31. What is lodging?
Answer: Lodging is the falling of crops due to heavy rain accompanied by strong winds.
Question 32. What is field fallowing?
Answer: Field fallowing is leaving the field uncultivated without sowing any crop.
Question 33. What is organic manure?
Answer: Organic manure is an organic substance obtained from plant and animal waste.
Question 34. How is crop rotation done?
Answer: Crop rotation is done by growing different crops in succession to replenish soil nutrients.
Question 35. Which crop does not require nitrogen fertilizer and why?
Answer: Leguminous plants do not require nitrogen fertilizer because the bacteria present in their roots can fix atmospheric nitrogen.
Question 36. Name two leguminous plants.
Answer: Berseem, Gram.
Question 37. What are weeds?
Answer: Weeds are unwanted plants other than the crop growing in the field.
Question 38. What is weeding?
Answer: Weeding is the process of removing weeds.
Question 39. Why is weeding necessary?
Answer: Weeding is necessary because weeds absorb nutrients from the soil and compete with crops for water and light, hindering their growth.
Question 40. Which chemicals are being used instead of weedicides?
Answer: Herbicides.
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