Not all the leaves, twigs, plant stems and clippings will be decomposed fully, and the screening will keep some of this rougher, textured material out and provide a finer humus for mixing.

They were much too fresh to be fully decomposed, for their bones to have dissolved from the pressure.

"Just because the house is beautiful doesn't mean the bones you built it on have fully decomposed."

In one room, huge casseroles filled with fully decomposed remains from the nearby woods are being boiled clean in detergent.

Not all materials need to be decomposed fully, however.

The bodies of the animals were fully decomposed, only bones and teeth remaining, but the bones were very brittle and fragile.

The fallen acidic spruce needles are not fully decomposed and combine with the moss base.

When they're fully decomposed and rather whiffy they can be added back on to the compost heap so that you can retain all of that goodness and return the nutrients back to the soil that the weeds removed.

In the meantime, there is now absolutely no dispute, scientifically, about the fact that foreign genetic material can pass into the gastro-intestinal tract via food, without being fully decomposed.

Some Coco peat is not fully decomposed when it arrives and will use up available nitrogen as it does so (known as drawdown), competing with the plant if there is not enough.