Question
Explain various effects of weeds on crop plants.
✓
Answer
Effect of weeds on crop plants:
- The growth of weeds in the crop fields is harmful because they compete with the crops for nutrients, water, space and light.
- The weeds spread crop pests and diseases by acting as alternate host to insects and microorganisms.
- Some weeds may produce toxic substances which may interfere with the growth of crop plants.
- During harvesting weeds get mixed with crop's produce to downgrade its quality.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How are clouds formed?
- Draw a neat diagram of Hydra.
- Label mesoglea and gastrovascular cavity.
- Name the group of animals it belongs to.
- Name one species of this group that lives in colonies.
Distinguish between Nonchordata and Chordata.
If there is low rainfall in a village throughout the year, what measures will you asuggest to the farmers for better cropping?
How does an Amoeba obtain its food?
Wings are absent in bed bug even then it is considered an insect. Why?
- Identify the figure. What is its function?
- Label V and W.
- Label X, Y and Z.
- W loses its nucleus in the mature state, still it remains alive. Explain how?
Write down four main characters of Pteriodophyta. Give two examples.
Explain the objectives of mixed cropping. How are crops selected for mixed cropping.
Write down four main characters of Bryophyta. Give two examples.