which of the following is not the method to maintain the fertility of the soil?
a. crop rotation
b. multiple cropping
c. fallowing
d. ploughing
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ploughing
Explanation:
CROP ROTATION HELPS IN INCREASING THE NUTRIENT QUALITY.THEREFORE MAINTAING SOIL FERTILITY.
FOLLOWING AND MULTIPLE CROPPING ARE ALSO USEFUL BUT PLOUGHING HAS NOT ANY ROLE IN IMPROVING SOIL FERTILITY
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