1
Soils that are poor in humus are generally in need of nitrogen.
2
Existence subsides into a humus that at first sight looks entirely anonymous.
3
Even though it looks like humus, it has not yet fully decomposed.
4
Of course most of this great supply of humus is very old.
5
Thrives well upon new rich soils that are well supplied with humus.
6
Large-scale holistic farmers must grow their own humus on their own farm.
7
Organic gardeners have many vague beliefs about how humus makes plants healthy.
8
The air retained the rich fetor of rotting humus and bird droppings.
9
Why were the wet humus and clay cooler than the wet sand?
10
Yet he'd seen boars hide beneath the humus in the forest that way.
11
In nature, humus formation goes on in the presence of air and moisture.
12
The roots also put large quantities of humus in the soil.
13
The humus introduced by the liberal applications of manure has made it black.
14
Most important, humus is the last stage in the decomposition of organic matter.
15
The mingling of humus and the subsoil is brought about by several means.
16
The land is impoverished by the use of commercial fertilizers, unbalanced by humus.
