The study of the organisms and their activity in soil, this includes bacteria, worms, fungi, and nematodes.

Wastes generated from the maintenance or alteration of public, commercial or residential landscapes including, but not limited to, yard clippings, leaves, tree trimmings, prunings, brush, and weeds.

The on-site process (typically small scale) where the biological decomposition of organic materials such as leaves, grass clippings, brush, and food scraps is processed into a soil amendment.

Solid waste consisting of wood pieces or particles which are generated from the manufacturing or production of wood products, harvesting, processing, or storage of raw wood materials, or construction [..]

All terms in green link to a glossary definition on this page. Term Explanation

Any of a group of generally low-oxygen–utilizing bacteria identified by a branching growth pattern that result in large threadlike structures. Many species occur in soil and are harmless to animal [..]

An ingredient that improves the properties of a formulation to which it has been added.

/aeration: To supply with air or expose to the circulation of air: aerate soil or soil aeration. Forced aeration refers to the use of blowers in a compost pile.

To be "with oxygen." Life or biological processes that can occur only in the presence of oxygen, such as the digestion of organic matter by bacteria.

Material of plant or animal origin, which result from the production and processing of farm, ranch agricultural, horticultural, aquacultural, silvicultural, floricultural, vermicultural, or viticultur [..]