覆膜与施氮互作对高粱产量及水氮利用效率的影响

梁晓红,张瑞栋,黄敏佳,刘静,曹雄

Interaction of Film Mulching and Nitrogen Application on Yield, Water and Nitrogen Use Efficiency of Sorghum

Xiaohong Liang,Ruidong Zhang,Minjia Huang,Jing Liu,Xiong Cao

表4 不同年度不同处理对高粱产量及水、氮肥利用效率的影响

Table 4 Effects of different treatments on yield, water and nitrogen use efficiency of sorghum in different years

处理 Treatment 产量 Yield (kg/hm2) 耗水量 Water consumption (mm) 水分利用效率 WUE [kg/(hm2·mm)] 生育期降水生产效率 Production efficiency of precipitation in growth stage [kg/(hm2·mm)] 年降水生产效率 Production efficiency of annual precipitation [kg/(hm2·mm)] 氮肥偏生产力 NFPP (kg/kg) 2015 2016 2015 2016 2015 2016 2015 2016 2015 2016 两年平均值Two year average value A1B1C1 7 076.85bc 5 593.35bcd 232.03abc 590.28a 30.51cd 9.47cd 33.59b 10.83bcd 21.29bc 8.47bcd - A1B2C1 7 497.15ab 5 947.80abcd 228.23bc 583.57a 32.91abc 10.19abc 35.58ab 11.51abcd 22.56ab 9.01abcd - A1B1C2 7 246.65b 5 780.10abcd 233.25abc 592.30a 31.09bcd 9.76bcd 34.39b 11.19abcd 21.80b 8.76abcd 28.95b A1B2C2 8 277.45a 6 245.55ab 223.74c 585.38a 37.01a 10.67abc 39.29a 12.08ab 24.90a 9.46ab 32.27a A1B1C3 7 468.05ab 5 702.25abcd 231.27bc 586.31a 32.38abc 9.73bcd 35.45ab 11.04abcd 22.47ab 8.64abcd 14.64de A1B2C3 7 868.40ab 6 011.10abc 221.71c 582.83a 35.50ab 10.32abc 37.35ab 11.63abc 23.67ab 9.11abc 15.42d A2B1C1 5 683.20e 5 183.40d 242.38ab 590.89a 23.47e 8.77d 26.97de 10.03d 17.10de 7.85d - A2B2C1 6 345.30cd 5 930.10abcd 235.31abc 587.14a 27.06de 10.10abcd 30.12cd 11.48abcd 19.09cd 8.98abcd - A2B1C2 5 420.55e 5 621.15bcd 236.31abc 592.56a 22.95e 9.49cd 25.73e 10.88bcd 16.31e 8.51bcd 24.54c A2B2C2 7 350.30b 6 430.05a 231.72bc 587.29a 31.72bcd 10.95ab 34.89b 12.44a 22.11b 9.74a 30.62ab A2B1C3 5 685.00de 5 441.10cd 246.68a 586.90a 23.06e 9.29cd 26.98de 10.53cd 17.10de 8.24cd 12.36e A2B2C3 5 882.85de 6 478.95a 233.20abc 580.38a 25.29e 11.16a 27.92de 12.54a 17.70de 9.82a 13.66de