返回Google圖書搜尋

The Effects of an Equidistant Planting Arrangement of Cowpeas (Vigna Unguiculata) on Light Interception and Barnyardgrass (Echinochloa Crus-galli) Competition

Charles Alan Martin

出版	U. of Calif., Davis, 1991
URL	http://books.google.com.hk/books?id=r5Xs6M-EapUC&hl=&source=gbs_api