What are Weeds?
Undesirable Plants which grow along with the main plants are called weeds
Example - Wild Oat,Grass, Amaranthas
Why are weeds harmful?
They are harmful because they consume water,nutrient,space and light which are meant for crops
What is Weeding?
Removal of Weeds is called weeding. It is done because these weeds compete with main plants for water, nutrient, space and light
Weeding is done by following methods
- Using chemicals called weedicides
- Removing Weeds by Hands
- Removing Weeds by Khurpi
What are weedicides?
Chemicals used to kill weeds is called Weedicides
Example - 2,4D
How should Weedicides be Sprayed?
They are diluted(mixed) with water
They are sprayed on weeds
Their spraying affects health of farmers, so farmers use piece of cloth before spraying them
NCERT Question 4 (c) -
Write a paragraph in your own words on each of the following.
NCERT Question 9 - What are weeds? How can we control them?