Question

4. What substances in the soil are useful for the growth of plants?​

Answer 1

The three main nutrients which are needed are:

1) Nitrogen (N)

2) Phosphorus (P)

3)Pottasium (K)

Answer 2

Required Answer :

There are some of the substances in the soil are useful for the growth of plants

Nitrogen (N)

Nitrogen is a key element in the plant growth.

Phosphorus (P)

Phosphorus helps transfer energy from sunlight to plants, stimulates early root and plant growth, and hastens maturity.

Potassium (K)

Calcium (Ca)

Magnesium (Mg)

Sulfur (S )

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