Which of the following is a main benefit of mulching in horticulture?

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Multiple Choice

Which of the following is a main benefit of mulching in horticulture?

Explanation:
Mulching primarily conserves soil moisture by forming a protective layer over the soil that slows evaporation from the surface. This keeps more water in the root zone, helping plants stay hydrated between irrigation events, especially in hot, dry conditions. While mulch also helps moderate soil temperature and reduce weed growth, the main benefit highlighted here is keeping soil moisture from evaporating away too quickly. The other ideas don’t fit because mulch, by its nature, reduces moisture loss rather than increasing it, tends to moderate rather than extreme soil temperatures, and protects against erosion rather than promote it.

Mulching primarily conserves soil moisture by forming a protective layer over the soil that slows evaporation from the surface. This keeps more water in the root zone, helping plants stay hydrated between irrigation events, especially in hot, dry conditions. While mulch also helps moderate soil temperature and reduce weed growth, the main benefit highlighted here is keeping soil moisture from evaporating away too quickly. The other ideas don’t fit because mulch, by its nature, reduces moisture loss rather than increasing it, tends to moderate rather than extreme soil temperatures, and protects against erosion rather than promote it.

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