Question

Give one harmful effect of fertilizer over manure.

Answer 1

Fertilizers:

The nutrient-rich substances that are added to the soil to increase its fertility are known as fertilizers. Some common fertilizers are urea, potash and phosphates.
Manures:
Manures are decomposed organic materials added to the soil to increase the fertility of soil and productivity of crops.

1. One harmful effect of fertilizer over manure is that excessive use of manures does not cause harm to plants but fertilizers do.
2. Fertilizers usually do not provide humus to the soil but manure does.