01. Name two methods of irrigating the crops.
02. Why do we need to grow crops?
03. What are the differences between manure and fertilizers?
04. Why do we need to remove weeds from the main crops?
05. How do legumes increase soil fertility?
Share
Answer:
1) tubewell system
sprinkler system
2)for food purpose
3)manures are organic
whereas fertilisers are chemical
manures are easy to carry ,cheap and not rich specific nutrients whereas fertilisers are bulky so not easy to carry , expensive,and nutrients specific
4) so that they do not compete with the main crops for water sunlight and other nutrients
5)they increase the nitrogen fixation process leading to more nitrates and nitrites easily soluble in water in the soil leading to plant growth