Humus Notes: Definitions & Explanations PDF | Download eBooks
Study Humus lecture notes PDF with biology definitions and explanation to study “What is Humus?”. Study humus explanation with biology terms to review biology course for online degree programs.
Humus Definition:
Humus is the remains of dead organisms and other organic matter.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Humus Notes:
Humus denominates the fraction of soil organic matter that is amorphous and without the "cellular cake structure characteristic of plants, micro-organisms or animals."[2] Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients. Humus is the dark organic matter that forms in soil when dead plant and animal matter decays. Humus has many nutrients that improve the health of soil, nitrogen being the most important. The ratio of carbon to nitrogen (C:N) of humus is 10:1.
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