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5 高密度下化控和氮肥对玉米产量及其构成因素的影响
Table 5 Effect of chemical control and nitrogen fertilizers on maize yield and its components under high density
处理
Treatment
穗数 Spike (ear/hm2) 穗粒数 Kernel per ear 千粒重 1000-grain weight (g) 产量 Yield (kg·hm-2)
2017 2018 2017 2018 2017 2018 2017 2018
N100+CK 81078a 80325a 541c 531c 332b 294c 10511c 9840bc
N200+CK 81654a 80793a 568b 550bc 327b 298bc 11548b 10430b
N300+CK 81782a 78685b 560b 533c 316c 298bc 11053bc 9204c
N100+Y 81657a 81052a 571b 556abc 340ab 306bc 11427b 9990bc
N200+Y 81683a 81184a 591a 581a 351a 327a 12646a 11704a
N300+Y 82150a 81167a 570b 566ab 339ab 314ab 11921b 10732ab