A) soil fertility
B) community area
C) organic content of soil
D) nitrogenous content in the soil
Correct Answer: A
Solution :
Crop rotation is the growing of alternate crops in the successive seasons on the same field. Crop rotation increases the soil fertility because different crops have different nutritional requirements. Nitrogenous content of soil increases by biofertilizers, chemical fertilizers and green manure. Organic content of soil increases by adding manure.
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