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What are the disadvantages of using chemicals to control weeds?

Posted on August 26, 2022 by Author

What are the disadvantages of using chemicals to control weeds?

Chemicals that drift out of your yard may travel to other areas and hurt wildlife or plants. The chemicals can wash away into nearby waterways or travel down into the groundwater supply. The weed killer may damage the environment and enter the human food chain and water supply.

How does weed affect agriculture?

Weed control is vital to agriculture, because weeds decrease yields, increase production costs, interfere with harvest, and lower product quality. Weeds also impede irrigation water-flow, interfere with pesticide application, and harbour disease organisms.

What is chemical control of weed?

Chemical weed control refers to any technique that involves the application of a chemical (herbicide) to weeds or soil to control the germination or growth of the weed species. Common examples of chemicals used to control weeds in forages are 2,4-DB; EPTC; bromoxynil; and paraquat.

What do farmers use for weed control?

Chemical, cultural and mechanical weed control are the primary weed control methods used on farms today. Chemical weed control uses herbicides to kill or prevent the emergence of weeds.

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What are the advantages of using chemicals in agriculture?

With the introduction of pesticides, farmers have been able to produce bigger crops on less land, Increasing crop productivity by between 20 and 50 percent. In addition, pesticides allow farmers to maximize the benefits of other valuable agricultural tools, such as high quality seeds, fertilizers and water resources.

What are the advantages and disadvantages of chemicals?

ADVANTAGE-Chemical Reactions helps us to find new products which can be useful for future inventions in a great way. DISADVANTAGE-Chemical Reactions cost us a lot of time and money for buying various chemicals and their instruments and sometimes harmful product may be produced which may harm us and our environment.

Why are weed not good for the crops?

Weeds are unwanted plants that grows with crop.. Weeds are not good for the crops because they compete of nutrients, sunlight etc.

What are the harmful and beneficial effect of weed in agricultural farming?

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Weeds compete with main crop for space, light, moisture and soil nutrients thus causing reduction in the yield. Affect quality of farm produce, livestock products such as milk and skin. Act as alternate host for pests and pathogens.

Why is chemical weed control important?

Herbicides are chemicals which have been developed to kill plants. Because specific herbicides normally control only certain weeds, the correct identification of the predominant weed species occurring in a field is a most important factor in selecting the best herbicide for use.

Why weed control is important?

Why do farmers use chemicals in agriculture?

Pesticides help protect plants from pests and diseases. They are used by farmers to control pests such as weeds or insects that damage and destroy food crops and to tackle diseases such as potato blight.

Why farmers stopped using chemicals on the land?

Agricultural chemicals render land lifeless and toxic to beneficial creatures, also killing the food chain above — fish, amphibians, birds, and humans (from cancer, chronic disease, and suicide). Surely a day is coming when pesticides stop working, resulting in massive famines.

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