Question

why are chemical fertilizers used in new farming methods how could the use of such fertilisers make soil less fertile what are the alternate methods of enriching soil?

Answer 1

As they are very toxic so they make soil less fertile

Answer 2

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1. chemical fertilizers provide minerals (nitrogen, phosphorus and potassium )which dissolve in water and are immediately available to plants.

2. but may not be retained in the soil for long.

3. they may be leached from the soil and pollute ground water, rivers and lakes.