In a 19-year study at the University of California, Davis, scientists dug six feet down in a study plot to compare changes in soil carbon in conventional, cover-cropped, and compost-added plots of corn-tomato and wheat-fallow cropping systems.
Their findings showed that soil health and the importance of carbon is more complex than often realized but, with the right management, the soil is a huge natural resource where carbon can be sequestered.
The implications are that the right applications not only help to slow the rapid rise of carbon in the atmosphere but foster effective sustainable agriculture.