Question

write down the disadvantages of using chemical fertiliser.​

Answer 1

The disadvantages of using chemical fertilizers are

1.It gets washed away by the rain water into the water bodies thus causing water pollution

2.Excessive use of fertilizers reduce the water retentivity of the soil and reduces it's natural fertility

3.It also reduces the plant productivity

Answer 2

The disadvantages of chemical fertilisers are:

•It kill the bad and the good bacteria on the plant.

Hope it helps...