What is the primary purpose of mulching in a nursery?

The primary purpose of mulching in a nursery is to retain soil moisture, suppress weeds, and regulate soil temperature. Mulch acts as a protective layer over the soil, which helps to reduce evaporation and keep the soil consistently moist for plant roots, especially during dry periods. This moisture retention is crucial for the health and growth of nursery plants.

Additionally, mulching suppresses the growth of weeds by blocking sunlight from reaching the soil surface, which can help prevent competition for nutrients and water between crops and unwanted plants. Another key benefit of mulch is its ability to moderate soil temperature; it keeps the soil cooler in hot weather and warmer during cold periods, thereby creating a more stable environment for root development.

While improving aesthetic appeal is a secondary benefit of mulching, it is not the primary purpose. Mulch does not enhance soil pH or provide nutrients directly to plants; these functions are typically addressed through soil amendments or fertilization rather than through mulching practices.