水氮调控对膜下滴灌马铃薯水分动态及产量的影响

马鹏, 魏熙明, 丁芳菊, 张楷楷, 王巧丽, 邢古月, 常磊, 黄彩霞

Effects of Water and Nitrogen Regulation on Water Dynamics and Yield of Potato under Mulched Drip Irrigation

Ma Peng, Wei Ximing, Ding Fangju, Zhang Kaikai, Wang Qiaoli, Xing Guyue, Chang Lei, Huang Caixia

表3 马铃薯产量和水分利用率

Table 3 Potato yield and water use efficiency

处理 Treatment 产量 Yield (kg/hm2) 大薯率 Large potato rate (%) 中薯率 Medium potato rate (%) 商品薯率 Commercial potato rate (%) WUE [kg/(hm2·mm)] W1N1 48 567.04±573.40b 58.58±0.76ab 21.36±1.66f 79.94±0.41ab 11.39±0.08b W1N2 53 826.35±246.55a 60.50±0.81a 21.91±0.24ef 82.42±1.05a 12.73±0.03a W1N3 43 736.06±258.14c 55.87±2.41b 24.43±1.78de 80.30±0.64ab 10.45±0.10cd W2N1 44 489.06±370.83c 54.56±0.55b 27.69±1.01bc 82.24±0.46a 11.90±0.02b W2N2 39 854.13±720.08d 45.44±0.17c 31.25±0.82a 76.70±0.65b 11.06±0.31bc W2N3 38 221.64±1630.09d 39.95±1.11d 31.13±0.19a 71.08±1.30c 10.36±0.52cd W3N1 23 840.58±170.16ef 24.25±1.50f 27.76±0.79bc 52.02±0.72e 8.96±0.06ef W3N2 24 703.83±438.54e 35.07±0.65e 30.46±1.01ab 65.53±1.66d 9.15±0.09ef W3N3 21 566.64±639.50f 21.18±1.65f 26.38±0.37cd 47.55±2.02f 8.79±0.29f CK 37 861.46±1724.84d 37.39±1.71de 29.15±0.52abc 66.53±2.22d 9.70±0.46de F值 W 1032.527** 489.378** 50.710** 458.713** 107.469** N 45.669** 35.970** 4.706* 44.358** 19.747* W×N 16.714** 18.424** 3.837* 25.742** 8.459*