Question

Harmful effects of microorganisms in agriculture

Answer 1

pathogenic microorganisms present in agricultural soils can have a harmful effect on the crop inducing: i) pathogenicity and disease, ii) resistance to crop control products, iii) poor soil health or reduced fertility, iv) poor crop health or poor yields, and lastly v) crop loss.

Answer 2

Excessive use of fertilizer make the soil poor in nutrients and kill many useful microbes.

Excessive use of non-biodegradable chemical pesticides leads to biological magnification.

Extensive cropping causes loss of soil fertility.

Excessive use of groundwater for agriculture lowers water table.