Controlled-release fertilizers are used in various agricultural industries to increase fertilizer nitrogen (N) use efficiency and decrease N loss to the environment. New research published in the Soil Science Society of America Journal examines the effect of soil water on N release at set matric potentials (which measure how tightly the water is held by the soil). Soil physics equipment normally used to determine soil water retention properties was used. This approach unified results across two soils with contrasting textures and hydraulic properties. Read the full article.