Question

point out the way of availability of nitrogen in soil​

Answer 1

Answer:

A molecule of nitrogen may enter the soil system as organic-N from crop residues or other plant or microbial biomass, from animal manures or organic wastes (for example, sewage sludge or food processing residues), and through the action of leguminous plants such as alfalfa that take nitrogen from the atmosphere and .

Explanation:

Answer 2

Explanation:

Some processes can lead to N losses such as leaching or volatilization. Nitrogen is added to soil naturally from N fixation by soil bacteria and legumes and through atmospheric deposition in rainfall. Additional N is typically supplied to the crop by fertilizers, manure, or other organic materials.

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