The chemical composition of soil organic matter (SOM) is a key determinant of its biological stability. Our objective in this study was to evaluate the effects of various sources of supplemental N on ...

This is a preview. Log in through your library . Abstract The decline in soil organic matter with cropping is a major factor affecting the sustainability of cropping systems. Changes in total C levels ...

A successful garden starts with the soil. Knowing the composition of a soil helps with managing fertilization, irrigation, and crop selection. In soil language the composition of a soil is known as ...

Arable farmers must be realistic about the amount of carbon that can be locked up in soils and should be wary of exaggerated claims about sequestration, warns a leading soil scientist. Big figures ...