Extension Educator, Local Food Systems and Small Farms
Weekly Crop Update 10-15-14
By Mike Roegge, University of Illinois Extension,
people call it black gold, most call it by its proper name: compost. This
material provides so many benefits to the soil that all gardeners should
strongly consider its use. The addition of compost can improve the soils
ability to store nutrients and water, improve water drainage and air movement,
improves the soil structure, and more. Every soil can benefit from the addition
of compost, but some soils become markedly improved by its addition, especially
high clay soils.
is a natural process of decay that changes organic wastes into valuable humus
like material. Place any organic matter in your backyard (pile of leaves,
cardboard box, watermelon rind) and they will eventually decompose. However,
placing those organic products (and any others) into a pile and managing them
properly will yield compost.
types of materials should be placed in a compost pile? You'll need a carbon
source, a nitrogen source, plus the proper mix of air and water. Carbon sources
can be many and are varied and these include "brown" materials- dead plants,
both vegetable and weeds, straw, all those plants that have quit bearing, plus
leaves you'll be raking this fall.
sources are anything green- grass clippings, green leafy wastes, fresh (green)
plant material such as plants or weeds you've pulled, vegetable scraps from the
size of the pile shouldn't be too large or too small. The ideal size is about
one cubic yard. Too small and the temperatures won't remain stable and too
large and getting air into the center of the pile becomes difficult.
Temperature and moisture are essential for the bacteria that do the
decomposting to survive. The pile should have the consistency of a damp sponge.
Temperatures should range from about 110-150 degrees.
you've gotten the size required, do not add additional materials to the pile.
Let it begin to work. Turn the pile often during the first several weeks, this
mixes the materials and adds air. Monitor the temperature and the moisture. In
a properly constructed and managed pile, you'll have finished product in a few
months. One not managed may take up to a year.
We'll be offering instructions on proper composting the last Tuesday-Thursday of October, from noon-1pm in several locations in our area. These "Lunch and Learns" will be offered at the Extension Offices on the following dates- Oct. 28, Carthage; Oct. 29, Pittsfield; Oct. 30, Rushville. Cost is $5. Register at: http://web.extension.illinois.edu/abhps/