Soil Biology Basics


Heather Robertson- horticulturisthumus-550 (1)


Factors which improve our soil:

An increase of stable carbon in the soil improves it immensely.  Humus is manufactured by beneficial bacteria in the soil by breaking down plant and animal residue until it is barely recognizable.  Humus is a stable form of carbon in the soil.  Its presence increases soil fertility, soil moisture retention, aeration, nitrogen fixation, mineral availability, disease suppression, and soil structure.  A farmer might fold these desirable soil characteristics under one term: tilth!humusThe best gardening practices build up a garden’s soil carbon reserves!