CROPPING COLLARDS AND WATERMELONS USING THE SAME PLASTIC MULCHES AND ROW COVERS

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  • 1 1George Washington Carver Agricultural Experiment Station Tuskegee University, Alabama, 36088
  • | 2 2Department of Horticulture, Alabama Agricultural Experiment Station, Auburn University Alabama, 36849
  • | 3 3Department of Agriculture, Southeast Missouri State University, Missouri State University, Missouri 63701-4799

An early planting (January) of 8 wks. old collards (Brassica oleracea (L) var. acephala `Georgia Collards') and subsequently followed by `Crimson Sweet' watermelon transplants (April) on clear and black polyethylene mulches and bare soil plus VisPore row cover (VCM, VBM, VBS), clear and black polyethylene mulches and bare soil (CM, BM, BS) in combination with drip irrigation were transplanted on the same plots. Marketable yield of collards (March) was significantly greater for mulched and row cover treatments than bare soil. Watermelon (harvested June 7th, 1990) total and marketable numbers and yield were significantly greater when grown on mulched treatments than bare soil. Mono-cropping of watermelon were profitable under VCM, VBM, CM and BM treatments and collards when grown as a mono-crop was not profitable under any system. By sharing the costs of production under a double-cropping system the profitability of watermelons increased when grown under VCM, VBM, CM, BM VBS and for collards under VCM and VBM treatments.

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