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प्रश्न
Explain various effects of weeds on crop plants.
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उत्तर
Weeds affect the growth of crop plants in the following ways:
- They compete with the crop plant for nutrients, water, space, and light, depriving the crop plants of essential nutrients.
- They spread crop pests by acting as hosts to insects and other microorganisms.
- Some produce toxic substances that harm the growth of crop plants.
- Some weeds get mixed up with crops during harvesting and lead to poor quality of crop production.
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संबंधित प्रश्न
How plants get nutrients ?
Name three most important nutrients required for plant growth.
Explain, how efficiency of irrigation can be increased.
Write down disadvantages of crop rotation.
Write about three main criteria which should be considered while selecting the crops for rotation?
Explain various methods of weed control.
Compare between mixed cropping and intercropping. Write down from advantage of both of these techniques.
Discuss the various methods which are used to control plant diseases.
Cultivation practices and crop yield are related to environmental conditions. Explain.
Differentiate between the following
Mixed cropping and Intercropping
