Soil organic matter
Soil organic matter (SOM) is vital to the health of the soil. Soil organic matter improves
How long to build up SOM?
Few studies exist, but with good conditions, realistic field additions of plant matter and "good" soil management, a rule of thumb of a SOM increase up to about 1% over 10 years can be considered. Note: This figure is not intended to be absolute - just indicative of the levels one might reasonably expect.