A discussion on soil organic matter, hummus is the tasty chickpea dish. By Caleb Goossen, Ph.D. The word “humus” has been used to describe soil organic matter since the late 18th century, deriving from the same word in Latin, which simply meant soil. Beyond referring generally to the layer of a soil profile rich in
By Will Bonsall Organic matter is basically composed of two types of elements: minerals and gasses. The minerals are obvious: they’re what’s left when you burn organic matter (like wood). The part that is gone is the gasses, four of them in all: hydrogen, oxygen, nitrogen and carbon. Now of course reduced carbon (as in
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