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Explain Various Effects of Weeds on Crop Plants. - Science

Short Note

Explain various effects of weeds on crop plants.

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Solution

Weeds affect the growth of crop plants in the following ways:

  1. They compete with the crop plant for nutrients, water, space, and light, depriving the crop plants of essential nutrients.
  2. They spread crop pests by acting as hosts to insects and other microorganisms.
  3. Some produce toxic substances that harm the growth of crop plants.
  4. Some weeds get mixed up with crops during harvesting and lead to poor quality of crop production.
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APPEARS IN

P S Verma and V K Agarwal Class 9 Biology - Science Part 3
Chapter 1 Improvements In Food Resources
Short Question Answer ( Carrying 3 Marks) | Q 19 | Page 64
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