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典型黑土春玉米化学肥料养分利用效率变化研究
仇少君1,李宁1,何萍1,魏丹2,3,金梁2,赵士诚1,徐新朋1,周卫1
Nutrients Use Efficiency Change of Chemical Fertilizers for Spring Maize in a Typical Black Soil
QIU ShaoJun1, LI Ning1, HE Ping1, WEI Dan2,3, JIN Liang2, ZHAO ShiCheng1, XU XinPeng1, ZHOU Wei1

图1. 哈尔滨2013—2016年月平均温度和月总降水量

Fig. 1. Month mean temperature and month total precipitation in Harbin from 2013 to 2016