Science, asked by sureshrenjitha, 9 months ago

What are weeds? How can we control them?

Answers

Answered by Anonymous
1

Answer:

weeds are nothing but waste plants grown in fields...they are useless.....

we control them by hand picking...daily....otherwise it will destroys whole field...

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Answered by fathimanajah
1

Explanation:

Weeds are unwanted wild plants that grow in the field. Weeds compete with the crop for nutrients, light, and space. As a result, crop plants get lesser nutrients, light, and space for their development.

Some important weeding methods are:

▪︎ Weeds can be controlled using weedicides. It is a chemical, which is sprayed in the fields to kill all available weeds. Weedicides are not harmful to crops.

▪︎ Tilling before sowing of crops also helps in removing weeds. Tilling uproots the weeds. The best time for the removal of weeds is before they produce flowers and seeds.

▪︎The manual method of removing weeds is with the help of a khurpi. It involves regular uprooting or cutting of weeds close to the ground.

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