耕作和秸秆还田方式对东北春玉米吐丝期根系特征及产量的影响

姜英,王峥宇,廉宏利,王美佳,苏业涵,田平,隋鹏祥,马梓淇,王英俨,孟广鑫,孙悦,李从锋,齐华

Effects of Tillage and Straw Incorporation Method on Root Trait at Silking Stage and Grain Yield of Spring Maize in Northeast China

JIANG Ying,WANG ZhengYu,LIAN HongLi,WANG MeiJia,SU YeHan,TIAN Ping,SUI PengXiang,MA ZiQi,WANG YingYan,MENG GuangXin,SUN Yue,LI CongFeng,QI Hua

表3 耕作和秸秆还田方式对春玉米产量及其构成因素的影响

Table 3 Effects of tillage and straw incorporation approach on grain yield and yield components of spring maize

年份 Year 处理 Treatment 穗数 Ear number (hm-2) 穗粒数 Kernel number 百粒重 100-kernel weight (g) 产量 Yield (kg·hm-2) 2017 PTS 65741a 497a 31.2a 9762.9a PSS 66056a 500a 30.5a 9812.2a RTS 60574c 495a 29.4a 9128.8b RSS 62352b 508a 30.4a 9418.3ab 2018 PTS 67364a 513a 36.8a 10100.5a PSS 65741b 509a 35.9a 9981.3a RTS 61420c 486b 36.2a 9209.5b RSS 66660ab 508a 34.7a 9994.9a 方差分析（F值）ANOVA (F-value) T 3.341** 0.254 0.126 6.326** S 0.487* 0.311 0.177 5.275 T×S 0.297** 0.754 0.266 0.222*