How does organic matter contribute to nutrient management in soil?

Organic matter plays a crucial role in nutrient management through its ability to provide essential nutrients and enhance soil structure. As organic matter decomposes, it releases a variety of nutrients such as nitrogen, phosphorus, and sulfur, which are vital for plant growth. These nutrients are made more available to plants in a form they can readily absorb.

Additionally, organic matter improves soil structure by promoting the formation of aggregates, which enhances aeration and water infiltration. This improved structure allows for better root development and overall plant health. It also aids in increasing the soil's ability to retain moisture, which is essential for supporting plant life during dry periods.

In contrast to the other options, which suggest negative effects such as reduced water retention, decreased microbial activity, or increased nutrient leaching, the correct understanding of organic matter's benefits illustrates its vital function in creating a healthy, productive soil environment.