Question

Crop rotation is helpful because [CPMT 1995]
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

Answer 1

C) it gave more nitrogen in the soil.

by crop rotation method the soil get time to regain it's nitrogen.

Answer 2

C is the right answer