![]() ![]() To control earworm, apply mineral oil to corn silk as soon as the silk appears. A good sign of readiness is when the silk turns brown and crisp. Use a mulch to keep down weeds and conserve moisture.Ĭorn is ready when the ears are completely filled and a pierced kernel shows a milky white liquid. This will help to anchor the plants and keep the roots covered and cool. Hill soil around the base of the plant when they are 6 inches high. Try bloodmeal, partially rotted manure or a liquid fertilizer. A side dressing of nitrogen, applied when plants are about knee high, will give corn an added boost in growth. Prepare the soil by working in well-rotted manure or other organic matter. Corn is a heavy feeder and requires fertile, well-drained soil with pH of 6.0-6.5. Plant several different varieties of varying maturities to ensure a longer season of harvest.įull sun is required. Best to plant when the soil has warmed to 21-24˚C. Planting in cool soil will set back seedlings, especially if a frost is still possible. Ornamental corn must be isolated from sweet corn. Thin the seedlings to 10-12 inches as ears will be greatly reduced in size or not form at all on crowded plants. Sow seed 3-4 inches apart and about 1⁄2 inches-1 inch deep in rows 24-32 inches apart. Corn is wind pollinated, so it must be planted in a block of several rows for even pollination. ![]()
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