Question

which substance s in the soil are useful for the growth of plants? std 5 lesson 1 environmental Balance​

Answer 1

Answer:

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Answer 2

Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.