Question 1 What is irrigation? Question 2 Explain how irrigation requirement depend on the nature of the crop? Question 3 Explain how irrigation requirement depend on nature of the soil? Question 4 Explain how irrigation requirement depend on the season? Question 5 How do the irrigation requirement of a wheat crop differ from that of a paddy crop? Question 6 Why … [Read more...] about Irrigation
Class 8
Crop Rotation
Question 1 Define crop rotation? Question 2 What are leguminous crops? Question 3 Give example of leguminous crops? Question 4 Name nitrogen fixing bacteria? Question 5 What are the advantages of crop rotation? Question 6 Which crop is generally grown between two cereal crop in crop rotation to restore the fertility of soil? NCERT Solutions Class 8 … [Read more...] about Crop Rotation
Fertilisers
Question 1 What are fertilisers? Question 2 Give few examples of fertilisers? Question 3 What are the advantages of fertilisers? Question 4 State the harmful effects caused by the excessive use of fertilisers? Question 5 Give differences between manures and fertilisers? NCERT Solutions Class 8 Science Fertilisers A chemical fertiliser is a salt or an … [Read more...] about Fertilisers
Manures
Question 1 What are manures? Question 2 What are the advantages of manures? Question 3 What are the disadvantage of manures? NCERT Solutions Class 8 Science Manures Repeated growing of crops in the same field removes a lot of precious minerals, elements, organic matter and other material from the soil. Due to this soil become infertile after some time, and the … [Read more...] about Manures
Sowing
Question 1 What is sowing? Question 2 How sowing of crops is done by hands? Question 3 How sowing of crops is done by seed drill? Question 4 What are the disadvantages of sowing of crops by hands? Question 5 What are the advantages of sowing of crops by seed drill? Question 6 What precaution should be taken while sowing seeds? Definition of Sowing The … [Read more...] about Sowing