What is the main characteristic of slowly available nitrogen compared to other forms?

The main characteristic of slowly available nitrogen is its ability to minimize leaching and runoff compared to other nitrogen forms. Slowly available nitrogen sources, such as controlled-release fertilizers or organic amendments, are designed to release nutrients gradually over time. This slow release aligns more closely with plant uptake needs, reducing the risk of excess nitrogen washing away into water systems. As a result, using slowly available nitrogen effectively improves nitrogen use efficiency and environmental protection.

In contrast, other forms of nitrogen, particularly quick-release types, are more soluble and can lead to higher incidences of leaching and runoff, particularly during heavy rainfall or with improper application techniques. This characteristic makes slowly available nitrogen beneficial for sustainable agricultural practices.