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Competition for Nitrogen Between Rice (Oryza Sativa) and Early and Late Watergrass (Echinochloa Oryzoides and Echinochloa Phyllopogon)

Andrea Jane Atkinson

出版	University of California, Davis, 1998
URL	http://books.google.com.hk/books?id=mYAIt5wD6tQC&hl=&source=gbs_api