Question

We should use manure in the crop fields in place of chemical fertilizers, but sometime manures are not
sufficient for the soil ?​

Answer 1

Answer:

Explanation:

This is true that sometimes manure is not enough for soil because of the degradation of the fertility of soil.

In the case of manure rates, it leads to an increase in the organic matter level in soils however, its not a regular case. It depends on the degradation of the fertility present in soil. Or the existing SOM's of the fields. They determine this ability of being sufficient or not.

And at times its impossible for every farmer to use manure for the sake of acquaintance.