Question

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

Answer 1

chemical fertilizers are used in new farming methods because they are nutrient specific and provide required nutrients to the soil they make the soil less fertile because the humus in the soil is not replenished and it also kills the microorganism in the soil for enriching the soil we can use the
green manure

Answer 2

$\huge\star\mathfrak\red{{ANSWER }}\star$

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.