文档介绍：Home Garden
Apr. 2002
HG-41
posting
Recycling a Natural Product
o protect the äina, many people practice the three More simply, compost is the result of humans imi-
TRs of conservation. They recycle aluminum cans, tating nature’s disposal system.
paper, and glass. They reuse paper as scratch pads and When vegetation dies or falls off trees in forests and
line garbage pails with plastic grocery bags. Some re- fields, insects, worms, and bacteria eat it. They leave
duce their use of energy and materials through energy behind small loose particles called humus. Humus binds
conservation and careful maintenance to make things soil particles together into larger aggregates, or grains,
last. that allow water and air to enter the soil more easily.
Apply the three Rs to yard trimmings and leftover Humus also contains important nutrients in forms plants
food, and you posting—an economical way to can easily use for healthy growth and reproduction.
reduce solid waste, anic materials, and recycle Mixed with soil, compost improves the soil’s tilth.
nutrients as a soil conditioner. Composting is about be- That is, it makes the soil looser, or lighter, which makes
ing good caretakers of our environment. water, oxygen, carbon dioxide, and minerals more avail-
able to plants. Compost improves root ration and
It’s in the bag makes the soil easier to work. Compost conserve