He dug down into the rich humus, the ripe smell of summer earth rising past him.

It smelled of the rich humus along the banks of the Paraguay.

Fruit bodies occasionally grow on well-decayed wood or rich humus.

Plants should be sheltered and grown in rich humus, with a constant supply of moisture.

Their abstract positions grow from a rich humus of sentiment, perception and experience, which is sadly lacking in these pages.

It grows best in a well-drained acidic soil of rich humus and small stones.

This species may survive light frosts, but should ideally be grown in rich humus and under shelter.

In cultivation, this species requires rich humus, good shade and much moisture.

The region is known for its black soil and a rich humus, and is mostly a cereal-growing area.

At the end of a year, Mr. England said, the piles have turned into rich black humus worth $10 to $20 a yard.