Some harmful effects of agricultural practices on the environment are as follows:

1. Use of fertilisers change the chemistry of soil and kills useful microbes.
2. Use of non-biodegradable pesticides leads to bio-magnification.
3. Extensive cropping causes loss of soil fertility.
4. Use of ground water for agriculture ‘ has resulted in lowering water table.
5. Natural ecosystems and habitat have been damaged during clearing of land for agriculture.