Origin of humusL, earth, ground, soil from Indo-European an unverified form ?hom-: see homo
The definition of humus is partially decomposed organic matter.
Partially decomposed plant matter in the soil is an example of humus.
a brown or black substance resulting from the partial decay of plant and animal matter; organic part of the soil
alt. sp. of hummus
A brown or black organic substance consisting of partially or wholly decayed vegetable or animal matter that provides nutrients for plants and increases the ability of soil to retain water.
Origin of humusLatin soil ; see dhghem- in Indo-European roots.
Variant of hummus
- Alternative spelling of hummus.
- It is covered with a thick sheet of black earth, a kind of loess, that is mixed with humus.
- The nitrogen in decaying roots, in the dead stems. and leaves of plants, and in humus generally is sooner or later changed into a nitrate, the change being effected by bacteria.
- The general surface of the interior highland consists of bare rolling moor-like country, with a great amount of red claylike soil, while the valleys have a rich humus of bluish-black alluvium.
- The turf is taken off either with the breast plough - a paring tool pushed forward from the breast or thighs by the workman - or with specially constructed paring ploughs or shims. The depth of the sod removed should not be too thick or burning is difficult and too much humus is destroyed unnecessarily, nor should it be too thin or the roots of the herbage are not effectually destroyed.
- Loess, often thin and always containing little humus, also covers large areas on the high, semi-arid plains in the western part of the state.