Question

farmers do not need to give nitrogen fertilizer in the field in which leguminous crops have been growth earlier​

Answer 1

Answer:

Legumes can Reduce Need for Nitrogen Fertilizer. ... However, planting legumes rather than fallow can have several benefits. Legumes, with the proper soil bacteria, convert nitrogen gas from the air to a plant available form. Therefore, they do not need nitrogen fertilization, and can even add nitrogen to the soil.

Explanation:

Answer 2

bcuz if he will give chemical fertilizer to dat plant then fertilizer will be the part of the product of dat plant which when we will eat it will be harm full to aur health