DATE: 9/18/97 WRITER: Bob Polomski, (864) 656-2604 Now's The Time To Prepare Your Garden for Next Spring Whether you garden year-round or hang up your hoe at summer's end, this is the time to be tidying up the garden and taking steps that build the soil for next spring. With spring two seasons away, some might wonder why they should be fooling with gardens now. The reason is certain insects and diseases overwinter in plant debris. Any time you spend now plowing under leftover plant stalks, debris and mulch eliminates winter havens for pests and can help you get a handle on controlling these problems next year. Burying or composting these winter havens for pests naturally will help reduce these problems. To replenish your garden soil, plant a cover crop or "green manure" in your garden. By preventing water and wind erosion, these plants will help hold your garden's valuable top-soil in place, while improving soil fertility and structure when you turn them over in the spring. Green organic matter improves water and nutrient retention in sandy soils and air and facilitates water movement in clay soils. Also, earthworms and other beneficial organisms benefit when organic matter is added. Cover crops are divided into legumes and nonlegumes. Legumes are associated with "nitrogen-fixing" bacteria called rhizobia. These bacteria reside in the plant roots and capture (fix) nitrogen from the air and make this nitrogen available to the legume. When tilled into the garden, the next vegetable crop will benefit from the addition of nitrogen and organic matter. Cool season legumes include crimson clover, Austrian winter pea, rough pea, or common, smooth and hairy vetch. Nonlegumes provide less nitrogen than legumes, but make up the difference with more organic matter. Cool season nonlegumes are mainly grasses like oats, wheat, rye and barley. If you plant a legume, inoculate the seed with a commercial nitrogen-fixing bacteria to improve the legume's ability to fix nitrogen. The rhizobia bacteria are usually mixed with black peat. Mix this black inoculum with the seed just before seeding. Then next spring, turn or spade under your cover crop three to four weeks before planting your garden. ****************************** If you have gardening questions or comments, write to Agricultural News & Publications, Clemson University, A-101 Poole Agricultural Center, Box 340311, Clemson University, Clemson, S.C. 29634-0311. END