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2 耕作和秸秆还田方式对春玉米生育期地上部干物质的影响

Table 2 Effects of tillage and straw incorporation methods on shoot dry matter at jointing, silking and mature stages of spring maize (g/plant)

年份 Year 处理 Treatment 拔节期Jointing stage 吐丝期Silking stage 成熟期Maturity stage 叶 Leave 茎鞘 Stem 地上部 Shoot 叶 Leave 茎鞘 Stem 果穗 Fruit 地上部 Shoot 叶 Leave 茎鞘 Stem 果穗 Fruit 地上部 Shoot 2017 PTS 35.8a 34.7a 70.5a 48.5a 72.2a 33.8a 154.5a 45.5a 88.9a 220.3a 354.5a PSS 36.6a 34.3a 70.9a 50.7a 71.2a 31.2a 153.1a 42.2a 80.6a 209.6b 332.4ab RTS 32.5a 29.1b 61.6b 44.5a 68.6a 32.8a 145.9b 37.4b 71.5b 207.2b 315.6b RSS 38.0a 34.1a 72.1a 42.1a 76.1a 31.3a 149.5ab 42.9a 85.7a 213.6ab 342.3a 2018 PTS 45.9a 42.5b 88.4ab 46.9a 72.3a 50.4a 169.6a 68.2b 93.5a 233.9a 395.6a PSS 41.4a 53.9a 95.3a 48.2a 71.7a 43.5b 163.4a 65.3b 85.7ab 218.6ab 369.6b RTS 38.4b 40.8b 79.2b 46.5a 65.4b 41.9b 153.8b 60.8b 80.7b 210.4b 351.9b RSS 43.2a 52.9a 96.1a 48.0a 73.8a 44.4b 166.2a 78.1a 86.9ab 220.1a 385.1a 方差分析（F值）ANOVA (F-value) T 3.15 0.87 10.32 0.69 12.87** 6.37* 19.56* 30.69 2.79* 10.27* 17.32* S 5..62 5.21* 8.65** 2.16* 8.21 4.15 25.21 12.16 1.17 6.71 4.65** T×S 2.36 3.56 1.32* 3.65 3.56 0.89 4.01* 9.65 1.68 5.56* 3.32*