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 Dan^2,³, JIN Liang², ZHAO ShiCheng¹, XU XinPeng¹, ZHOU Wei¹

图3. 2013—2016年间NPK处理氮磷钾养分利用效率

Fig. 3. Nitrogen, phosphor and potassium use efficiency under NPK treatment from 2013 to 2016