Question

Write about the consequences of using excess amount of fertilizers on the health of human beings, animals and the environment.​

Answer 1

Answer:

1. source - poor quality (containing toxic substances/elements above permissible limit)

2. use - indiscriminate use (intensity - overdose as you mentioned and frequency)

Considering the presence of contaminants even natural fertilizers (organic manures) may be harmful if applied in higher dose regularly.

Explanation:

First of all, not all fertilizers are harmful for human health. The hazard of fertilizers on human health and environment highly depends on the dose, types and methods of fertilizer application. On the other hand, fertilizers have been used for thousands of years, but before the wide use of synthesized chemical fertilizers, people commonly apply manure or ash. Also fertilizer application definitely boasts crop production and supply more cereal needs from the human beings. The current problems of fertilizer application are mainly on the excessive application of chemical fertilizers, unbalanced application of nutrients, and deficiency of nutrients for crop growth.