Even buoyant microplastics may not stay near the top of farm soil. New research, published in the journal Engineering ...

Every farmer and every allotment gardener knows that humus is good for plant growth. But why? Humus contains humic substances. These substances have numerous advantages for the soil. In particular, ...

A reader e-mailed me with a question about humic acid. Since the quality of their lawn is not as good as they desire it to be, a lawn service has recommended an application of humic acid. They want to ...

A major compound in soil organic matter degrades chronic wasting disease prions and decreases infectivity in mice, according to a new study. A major compound in soil organic matter degrades chronic ...

Hydroxyl radical (·OH) is the most reactive oxidant and plays important roles in the biogeochemical cycle of elements and the attenuation of contaminants in the environment. In recent years, the redox ...