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段玉, 妥德宝, 赵沛义, 李焕春
Study on the Technic of Covering on Ridge then Planting in Furrow and Collecting Rrain-water in Field in North of Loess Altiplano
DUAN Yu, TUO De-bao, ZHAO Pei-yi, LI Huan-chun
华北农学报 . 2006, (S3): 44 -47 .  DOI: 10.7668/hbnxb.2006.S3.009