When may fertilizer NOT be applied?

When may fertilizer NOT be applied?

• A. During turf dormancy or on saturated soil.
• B. During active growth with dry soil.
• C. On non-turf areas only.
• D. Any time fertilizer is needed.

Answer: (A)

The main idea is that fertilizer should be applied only when the turf can take it up and use it effectively. During turf dormancy, the grass isn’t actively growing and root activity is very low, so nutrients aren’t being absorbed. They can stay in the soil, move with water, or cause salt buildup that can injure the plant when growth resumes. On saturated soil, roots have little oxygen and can’t efficiently absorb water or nutrients, so the fertilizer is not used and may contribute to runoff or leaching, harming water quality. For these reasons, fertilizer should not be applied during dormancy or on saturated soil. Applying fertilizer during active growth with dry soil is appropriate because roots are active and the soil can take up nutrients, supporting healthy growth. Fertilizing on non-turf areas is a separate consideration and doesn’t address when you should or shouldn’t fertilize turf. Saying you can apply fertilizer any time ignores environmental and plant-uptake factors that limit effectiveness and can cause harm.

The main idea is that fertilizer should be applied only when the turf can take it up and use it effectively. During turf dormancy, the grass isn’t actively growing and root activity is very low, so nutrients aren’t being absorbed. They can stay in the soil, move with water, or cause salt buildup that can injure the plant when growth resumes. On saturated soil, roots have little oxygen and can’t efficiently absorb water or nutrients, so the fertilizer is not used and may contribute to runoff or leaching, harming water quality. For these reasons, fertilizer should not be applied during dormancy or on saturated soil.

Applying fertilizer during active growth with dry soil is appropriate because roots are active and the soil can take up nutrients, supporting healthy growth. Fertilizing on non-turf areas is a separate consideration and doesn’t address when you should or shouldn’t fertilize turf. Saying you can apply fertilizer any time ignores environmental and plant-uptake factors that limit effectiveness and can cause harm.