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1 耕作和秸秆还田方式对吐丝期春玉米根长及其分布的影响

Table 1 Effects of tillage and straw incorporation methods on root length and its distribution of spring maize at silking stage (m)

年份 Year 处理 Treatment 垂直根长分布 Vertical root length distribution 水平根长分布 Horizontal root length distribution 总根长 Total root length 0-30 cm 30-60 cm 0-10 cm 10-20 cm 20-30 cm 2017 PTS 454.8a 80.3b 290.7a 157.7a 80.3b 535.1a PSS 421.4a 102.5a 281.4a 133.5b 102.4a 523.9a RTS 317.6b 79.8b 209.3b 105.2c 82.9b 397.4b RSS 383.2ab 111.5a 280.3a 136.6b 99.8a 494.7a 2018 PTS 508.6a 272.4c 422.8a 189.7ab 168.4a 780.9a PSS 433.5b 301.0ab 369.2c 216.2a 149.1b 734.5b RTS 359.8d 289.9b 349.7d 169.3b 130.7b 649.7c RSS 391.4c 339.9a 381.6a 196.8ab 152.9a 731.3b 方差分析（F值）ANOVA (F-value) T 9.11** 7.05 0.25* 0.17** 21.25 35.65** S 3.17* 1.98** 9.66* 2.39* 1.89** 26.36** T×S 0.275** 8.14* 1.37* 1.94* 9.21* 5.32**