Organisms And Population Question 55
Question: Crop rotation is helpful because [CPMT 1995]
Options:
A) It gives more nitrates in the soil
B) It gives more sulphates in the soil
C) It gives more nitrogen in the soil
D) It gives more phosphorus in the soil
Show Answer
Answer:
Correct Answer: A
Solution:
If the same crop is grown year after year, fertility of soil is lost due to utilization of same minerals again and again, thus disturbing the soil structure, which facilitates soil erosion.
Legumes are useful in rotation of crops because of having modulated roots and it gives more nitrates in the soil.
BETA
