Science, asked by diyapanchal194, 4 months ago

What are weeds? Give the examples of weeds, need to control them and methods

to control them.​

Answers

Answered by vatsaraunak8
3

Answer:

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.

Explanation:

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Answered by pgpc
4

What are weeds?

A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ... In the same way, volunteer crops (plants) are regarded as weeds in a subsequent crop.

Need to control them

There are a lot of reasons to control weeds. Weeds are unsightly, they can interfere with harvest, they can carry crop pathogens or host damaging insects, and most importantly they rob a crop of its yield potential. Weeds do compete with crops and reduce crop yield and crop quality.

Examples of weeds,

A few examples of broadleaf weeds are clover, dandelion, and purslane. Some examples of grassy type weeds are nutsedge, pampas grass, and bermuda grass. Weeds can be further divided into annuals, biennials, and perennials.

Methodsto control them.

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.

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