不同降水状况下旱地玉米生长与产量对施氮量的响应

宁芳,张元红,温鹏飞,王瑞,王倩,董朝阳,贾广灿,李军

Responses of maize growth and yield to nitrogen application in dryland under different precipitation conditions

Fang NING,Yuan-Hong ZHANG,Peng-Fei WEN,Rui WANG,Qian WANG,Zhao-Yang DONG,Guang-Can JIA,Jun LI

图4 不同处理下春玉米不同生育阶段干物质积累量 ZD958: 郑单958; SD8806; 陕单8806; N0: 施氮量为0 kg hm-2; N75: 施氮量为75 kg hm-2; N90: 施氮量为90 kg hm-2; N150: 施氮量为150 kg hm-2; N180: 施氮量为180 kg hm-2; N270: 施氮量为270 kg hm-2; N360: 施氮量为360 kg hm-2。

Fig. 4 Dry matter accumulation in different growth stages of spring maize under different treatments ZD958: Zhengdan 958; SD8806: Shaandan 8806; N0: N application rate was 0 kg hm-2; N75: N application rate was 75 kg hm-2; N90: N application rate was 90 kg hm-2; N150: N application rate was 150 kg hm-2; N180: N application rate was 180 kg hm-2; N270: N application rate was 270 kg hm-2; N360: N application rate was 360 kg hm-2.