Question

what are weeds? how we can control them​

Answer 1

$\bold{\tt\red{QUESTION : }}$

What are weeds ?

How can we control them ?

$\bold{\tt\purple{ANSWER: }}$

Weeds are unwanted plants in the cultivated fields. They are plants other crops. Weeds tend to compete with crops for food , water , nutrients , space and light .

The process of removing weeds is called weeding

☆ Methods to control weeds :-

A) Mechanical methods - Weeds may be pulled with our hand. Ploughing helps in removing as they uproot majority of them.

The weeds are removed manually by using a trowel ( Khurpa )

B) Cultural Methods - They include - proper bed preparation , timely sowing of crops , intercropping , crop rotation .

C) Chemical methods - Chemical weed killers , called herbicides are sprayed on weeds to destroy them.

Example of weedicides - Atrazine , fluchioralin , isoproturon.

D) Biological Control - Biological Control of weeds involves the deliberate use of insects or some other organisms which consume and specifically destroy the weed plants.

$\bold{\tt\red{THANKS}}$

Answer 2

Answer:

A filed many other undesirable plants may grow naturally along with the crop. these undesirable plants are called weeds. weeds are controlled by using certain chemical called weedicides.