Question

Weeds affect the crop plants by:

• A. killing of plants in the field before they grow
• B. dominating the plants to grow
• C. competing for various resources of crops (plants) causing low availability of nutrients
• D. all of the above

Answer 1

The correct option is C

competing for various resources of crops (plants) causing low availability of nutrients

The correct option is C:

Explanation of the correct option:

1. The unwanted plants in crop fields are known as weeds.
2. Weeds grow along with the crop plants.
3. Weeds are strong and dominating competitors for crop plants.
4. This is because weeds have copious seed production, quick population establishment, and adaptation characteristics.
5. Weeds fight for the essential components, light, water, nutrients, and space with the crops.
6. Weeds reduce the crop yield and can even cause diseases in crops.
7. Weeds can be prevented by spraying weedicides.
8. Weeds can be removed by weeding.

Explanation of the incorrect options:

Option A: Weeds do not kill the plants in the field before they grow.

Option B: Weeds do not dominate the plants to grow.

Final Answer: Weeds affect the crop plants by competing for various resources of crops (plants) causing low availability of nutrients.