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Grain Crops in Eastern Agricultural Region of Qinghai During 1987-2017: Spatio-temporal Variation Characteristics of Potential Productivity and Yield Gaps
杨昭明,冯晓莉,黄霞,来晓玲,王紫文
Chinese Agricultural Science Bulletin . 2019, (3): 26 -33 .  DOI: 10.11924/j.issn.1000-6850.casb18070092