What are soil sterilants?

What are soil sterilants?

• A. Short-term selective herbicides.
• B. Long-term nonselective herbicides preventing regrowth.
• C. Soil amendments that increase microbial activity.
• D. Fertilizers that suppress weed germination.

Answer: (B)

Soil sterilants are pesticides applied to the soil to create a long-lasting chemical barrier that stops both weed seeds and existing vegetation from growing. Because they’re nonselective, they affect most plants, not just specific weeds, and their effects persist for months or years, preventing any regrowth after treatment. They are not soil amendments, nor fertilizers, and they aren’t limited to a single weed species. This long-lasting, broad-spectrum action is what distinguishes soil sterilants from short-term, selective herbicides, soil amendments, or fertilizers.

Soil sterilants are pesticides applied to the soil to create a long-lasting chemical barrier that stops both weed seeds and existing vegetation from growing. Because they’re nonselective, they affect most plants, not just specific weeds, and their effects persist for months or years, preventing any regrowth after treatment. They are not soil amendments, nor fertilizers, and they aren’t limited to a single weed species. This long-lasting, broad-spectrum action is what distinguishes soil sterilants from short-term, selective herbicides, soil amendments, or fertilizers.