Saturday, October 16, 2010

Fall Cover Crops for Better Spring Soil

With a good 1 to 2 inch layer of organic compost over your garden bed, and a cover crop of green manure planted from seed in the fall, you will be on your way to improving your garden soil for next year's planting. Sown from seed, cover crops germinate very quickly and will grow all winter long. Then simply till the cover crop in once it flowers in spring. The cover crop's foliage will help protect the soil from getting compacted, which can happen in constant winter rain or from blanketing of snow. And when you till it in, the foliage adds organic material that will improve soil structure, increase nutrients and help your soil retain moisture.

Plants in the the legume family, commonly known as the pea family, bean family or pulse family, include soybean, alfalfa, vetch or fava beans. These are some of the best cover crops available (check online seed companies and nurseries). Legume plants are special in that they will retain nutrients that will then be returned to the soil when tilled in, thereby providing nutrients for your spring and summer crops next year. These crops have assertive root systems, which are helpful in breaking up hard soils. They are also very hardy and frost tolerant.

Cover crop seeds can be broadcast in mid-October right over that one to two inch layer of compost and all around the fall crops that are currently growing in your garden. Fall cover crops will grow quickly and reduce weed problems, but won't grow tall enough to overwhelm existing plantings.

Making organic compost for your fall cover crop is easy with tumbling composters. Look for models with more than one section inside: one for new compostable materials and one section for completed compost. If you live where there are temperature extremes, consider one of the Jora tumbling composting machines. They are manufactured in Sweden, and insulated to withstand temperature extremes.
Happy Composting!

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