Multiple choice general knowledge

To reduce the crop-weed competition, at what stage are the herbicides used?

  1. At germination

  2. At tillering

  3. At ear emergence

  4. After first irrigation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Herbicides are most effectively applied after the first irrigation (Option D) because this timing allows for weed germination and emergence, ensuring the herbicide targets young weed seedlings when they're most vulnerable. Applying at germination (Option A), tillering (Option B), or ear emergence (Option C) is less effective as weeds may have already established or the crop is too developed.

Keep practicing — related questions