化学调控和氮肥对高密度下春玉米光热水利用效率和产量的影响

刘笑鸣,顾万荣,李从锋,张立国,王明泉,龚士琛,陈喜昌,李彩凤,魏湜,李文华

Effects of Chemical Regulation and Nitrogen Fertilizer on Radiation, Heat and Water Utilization Efficiency and Yield of Spring Maize Under Dense Planting Condition

LIU XiaoMing,GU WanRong,LI CongFeng,ZHANG LiGuo,WANG MingQuan,GONG ShiChen,CHEN XiChang,LI CaiFeng,WEI Shi,LI WenHua

表4 高密度下化学调控对玉米光热水利用效率的影响

Table 4 Effect of chemical regulation on radiation, heat and water utilization efficiency under high density

处理 Treatment 光能利用效率 RUE (%) 热量利用效率HUE (kg·hm-2·℃-1·d-1) 水分利用效率 WUE (kg·hm-2·mm-1) 2017 2018 2017 2018 2017 2018 N100+CK 2.42bc 2.43d 3.48b 2.95c 20.55c 19.14c N200+CK 2.48b 2.57c 3.73ab 3.34ab 22.14abc 21.07bc N300+CK 2.68a 2.47d 3.61b 3.05bc 21.44bc 19.33c N100+Y 2.40c 2.62bc 3.69b 3.20bc 22.56abc 19.90bc N200+Y 2.66a 2.70a 3.99a 3.65a 24.30a 24.03a N300+Y 2.69a 2.67ab 3.71ab 3.34ab 23.22ab 22.03ab