Question
How an increased use of chemical fertilizers, pesticides and insecticides degrade the soil ? Discuss.
Solution
Excessive use of chemical fertilizers, pesticides and insecticides etc. degrade the soil by destroying their natural, physical, chemical and biological properties.
1. Chemical fertilizers destroy the micro organisms of the soil which are agents of nitrogen conversion in the soil.
2. They increase salinity.
3. They reduce the water-holding capacity of the soil and also have their traces in the coups which act as slow poison for human beings.
4. Organic phosphate components used to kill insects can stay for longer time in soils destroying micro organisms.
