The decayed organic matter that is crucial for plant growth Humus is what remains after organic litter from plants and ...

NO problems of soil science have proved more difficult than those concerning the nature and functions of soil humus. The early work of Sprengel and Berzelius yielded a long list of humic and other ...

Humus is highly recalcitrant, and this resistance to decomposition leads to a long residence time in soil. Plant debris is less recalcitrant, resulting in a much shorter residence time in soil.

A very important part of the success of this project is an understanding of the soil food web, in other words, how organisms ...

For clay, it can be a game-changer. Organic matter is basically anything that decomposes and adds humus to your soil. Compost, animal manures, peat, lawn clippings, straw, wood chips, cardboard, leaf ...

producing an acid humus. The acidic conditions are not liked by soil organisms which would normally merge the boundaries of the horizons.