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Rolled Winter Rye and Hairy Vetch Cover Crops Lower Weed Density But Reduce Vegetable Yields in No-tillage Organic Production

Matthew Leavitt

出版	University of MinnesotaMajor: Applied plant Science., 2010
URL	http://books.google.com.hk/books?id=rw-nAQAACAAJ&hl=&source=gbs_api