What are the negative impacts of using fertilizers?

Answer 1

Contaminating surface water with phosphates. Plant life there will grow so fast all fish dies...stuff like that.

Answer 2

It all depends on getting the right balance of fertilizers as well, because use to little, means less potential harm to the environment, but also less plant growth. The problem with fertilizers is that they have to be soluble as plants usually take up the fertilizers through their roots.
Negative impacts of fertilizers all occur after a period of rain, which leaches the soil of all nutrients and phosphate ions of the fertilizers which the plants haven't taken in. The fertilizers then gets into the water supply and the tiny algae feed on them and reproduce at an exaggerated rate, so the algae end up covering the lake or pond surface cutting off light to the other living creatures in the water.
The algae die and bacteria decompose the algae, and because the bacteria have such a large food supply, and so multiply rapidly using up the oxygen in the water, and so the other creatures die.
The whole process is called Eutrophication.
Also if the fertilizers get into drinking water the problems associated with this are the "blue baby syndrome" and stomach cancer.

Answer 3

use too much fertilizer and thefertilizer will not be absorbed by the plants on the field and will be washed away by rain.
The fertilizer washed away will go into river and lakes, fertilizing the river/lake, the grow of acquatic plants into the river will eat away all the oxygen dissolved into the water and the fishes will die. The river will became a sort of stinky swamp with floating dead fishes.
Need YEARS to recover a damaged ecosystem.

That's why when you cultivate with fertilizers only without doing the crop rotation (3 or 5 years are common rotations) you should pay real attention to the weather forecasting.

Answer 4

Hi . Iam a student

I like to answer this question . sometimes fertilizers get washed away due to excessive irrigation and are not fully absorbed by the plants . this excessive fertilizers then leads to water pollution

Continuous use of fertilizers in an area can destroy soil fertilityand the microorganisms in the soil are destroyed by fertilizers.

Answerd by S.Durga

Answer 5

it's not in the actual soil that's fertilized. it's what happens when rain hits and the chemicals are leached from the soil. then they hit the water supply and can kill fish and make waste treatment more expensive

Answer 6

I agree with last answer, hannah 76 , spot on !

Answer 7

If you pass it on to terrorists they make a big bang with it.