渭北旱塬豆科绿肥提高冬小麦籽粒锌的效应与影响因素研究
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The Increasing Effect and Influencing Factors of Leguminous Green Manure on Wheat Grain Zn in Weibei Highland
YiXuan LIU,DongLin HUANG,Na LIU,ZhiYuan YAO,Dan YIN,YuanYong MENG,HuBing ZHAO,YaYun GAO,ZhaoHui WANG
图1 2016—2017年及25年(1992-2016)平均降水量
Fig. 1 Precipitation from 2016 to 2017 and 25 year average precipitation (from 1992 to 2016)