Question

-What is humus? What its importance for plants​

Answer 1

Answer:

SOM improves conditions for plant growth in mineral soils in several ways. ... The humus in soils has an impact on nutrients in the production environment where it serves as a storehouse for nitrogen, phosphorus, sulfur, and most micronutrients.

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Answer 2

An organic dark matter formed by the dead and decayed plants and animals. It contains many useful nutrients like nitrogen which is the most important or which can be called as the key nutrients of a plants to grow