What is the primary characteristic of weeds in agriculture?

JAMB Agricultural Science 2023 10 views

What is the primary characteristic of weeds in agriculture?

  1. They are beneficial for crop growth.
  2. They are cultivated intentionally by farmers.
  3. They compete with crops for resources. ✓
  4. They do not require any maintenance.

Explanation

Weeds are unwanted plants that compete with crops for sunlight, water, nutrients, and space. They reduce crop yields by taking resources the farmer intended for the cultivated plants.

Weeds often grow faster than crops, produce many seeds, and tolerate harsh conditions. Examples include spear grass, siam weed, and tridax. Some also harbor pests and diseases.

Control methods: manual weeding, hoeing, herbicides, mulching, and crop rotation. Integrated weed management combines multiple methods for effective, sustainable control.

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