How do fertilizers and pesticides harm the environment?

Answer 1

The effects of using chemicals on farmland vary considerably according to how much of which chemicals are used. There is also disagreement among experts as to the short and long-term effects of chemical usage. Herbicides used to control weeds can drift on the wind from the plot where they are being applied and effect other plants - such as landscape plants - unintentionally. The "inert" ingredients in some herbicides have been shown to have more toxicity to animals than the "active" ones. Toxicity in this case is measured by what dosage of the chemical is strong enough to kill 50% of the population being tested. Pesticides used against insects and mites can kill beneficial insects (insects that eat pest insects), like lady bugs, aphid lions, and green lacewings. When the beneficial insects are gone, there is no control over the pest insects, so their populations can increase much more quickly after the initial application, requiring further applications to control the original pest. Pesticides can also kill butterflies, moths, Spiders and bees, which play other roles in the environment, such as pollinating plants. Pesticides can persist in the insects' bodies, and effect birds or other insectivores which eat the poisoned insects. Other chemicals, such as fertilizers can disrupt the chemistry of the soil, leading to deficiencies of certain microorganisms which play a role in making nutrients in the soil available to plants. Chemical fertilizers also can lead to soil salinization (the soil becomes salty), which requires large amounts of water to leach the salt out of the soil, which in turn can intensify water shortages. Agricultural chemicals can also significantly increase crop yeilds in the short term by limiting damage by pests, competition for water and nutrients from weeds and by providing large amounts of nutrients in a form that is easily available to plants. In the long term these processes can lead to serious depletion of soils because the natural process of converting organic matter to tilth and the balance of microorganisms in the soils has been disrupted.

Answer 2

It afffects many km of land per year thus meaning its quite obviously not too good at all.Its slowly yet affectively destroying Earth like a fat man destroys Doritos with a spicy dip.

Answer 3

What are the effects of use of agrochemicals in the farm land?

Agro-chemicals are used for quantity production. In this process, we use more doses of artificial proteins, Minerals, Vitamins and agents to grow up the plants and fuel them to produce more number of products or in bigger volume.

With these agrochemicals though on one side we get multiple times more food. On other hand the food we get is of less natural contents and of heavy chemicals. These chemicals are proved harmful not only for humans but for all live hoods. This has disturbed the ecological balance. Second effect is SALTED LAND. In period of time, that is mostly within 15 years of use of these chemical fertilizers and pesticides makes cultivated land in to barren land. This of course is a biased and jaundiced view from someone whom I would suggest is not trying to feed the world.

Answer 4

Pesticides can cause a lot of harm to the environment and the public health. Most pesticides can contain toxic chemicals that can cause negative health effects such as cancer and reproductive disorders.

Answer 5

Abundance, adaptations, depletion, mortality and pollution describe ways that fertilizers and pesticides affect the environment. Positive effects include abundance of dense, lush, thick vegetation. Negative effects range from adaptations by non-targets and targets through immunity to treatments and their residue, depletion of soil through nitrogen in excess of moisture underground, mortality of non-target and target animals and plants and pollution of air, land and water.

Answer 6

theyy are badd! they kill poor fishies like pamela :O:(