LONG ANSWER QUESTION
Discuss the necessity of weeding. How is it done?
Answers
The unwanted plants that grow in-between crops are called weeds. The process of removal of such unwanted plants is called weeding. It has to be done 2-3 times in a week, and usually practised during the earlier stages of crop cultivation. The advantages of weeding are: The weeds compete with the actual crop for space, nutrients and water. Hence, the removal of these unwanted plants provides an ample amount of nutrients and water to the crops. It increases the fertility of the soil.
Due to better penetration of the wind and the sun, it reduces the number of diseases caused by crops and also helps in controlling pests. It loosens the soil, which helps in the penetration of water to the roots of the cultivated plant. Despite the advantages of weeding, it is advised to keep a few spots of these unwanted plants between the crops. This ill act as a refuge and will help in conserving the ecosystem.
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Answer:
Weeding is an important control method practiced in many crops. The removal of weeds is useful because these unwanted plants compete with the crop for space, water and nutrients. Weed control should usually be done in an early crop stage, as this is more practical (the weed plants are smaller) and more effective. It is done manually or by spraying weedicides .