Question

how do weeds affect the growth of crops ​

Answer 1

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It is hence important to use a weed killer in order to control weeds. Weeds if left unchecked may compete with other plants for nutrients, space, water and soil, thereby restricting their growth.Weeds often insulate the soil surface by forming a layer and hence increase frost risk.

Answer 2

Weeds absorbs the nutrients from the soil and the crop will not have sufficient nutrients . It happens even with water . So weeds should be taken off from the field