Humus definition
Humus means a complex amorphous aggregate, formed during the microbial decomposition or alteration of plant and animal residues and products synthesized by soil organisms; principal constituents are derivatives of lignins, proteins, and cellulose combined with inorganic soil constituents and for water absorption.
Humus means a dark or black carbon-rich relatively stable residue resulting from the decomposition of organic matter that retains nutrients and slowly releases nutrients to plants and increases the ability of the soil to retain water.
Examples of Humus in a sentence
Humus – organic portion of the soil remaining after prolonged microbial decomposition.
Humus base fertilizer is to be applied directly following spring and fall aeration operations.
Schweizerische Zeitschrift für Forstwesen 12, 530-535 Hagedorn F (2009) Humus, ein grosser Speicher, aber eine kleine Senke für atmosphärisches CO2.
Humus: Partially decomposed organic material found in soil and water.