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2 不同生育期马铃薯日耗水强度、耗水模系数

Table 2 Daily water consumption intensity and water consumption modulus coefficient of potato at different growth stages

处理 Treatment 苗期 Seedling stage 块茎形成期 Tuber formation stage 块茎膨大期 Tuber bulking stage 淀粉积累期 Starch accumulation stage CD (mm/d) CP (%) CD (mm/d) CP (%) CD (mm/d) CP (%) CD (mm/d) CP (%) W1N1 2.32±0.01a 19.58±0.01ab 3.39±0.02a 24.65±0.27c 4.73±0.08a 29.96±0.36c 3.24±0.01a 25.83±0.09d W1N2 2.33±0.01a 19.84±0.03a 3.39±0.02a 24.84±0.11c 4.62±0.06ab 29.46±0.29c 3.22±0.05ab 25.86±0.43d W1N3 2.34±0.01a 20.09±0.01a 3.41±0.04a 25.24±0.19bc 4.46±0.02bc 28.75±0.04cde 3.20±0.01ab 25.94±0.14d W2N1 2.03±0.01b 19.49±0.12ab 3.06±0.03c 25.32±0.05bc 4.04±0.09d 29.12±0.34cd 2.87±0.01cd 26.08±0.17d W2N2 2.02±0.04b 20.21±0.21a 2.94±0.04d 25.31±0.01bc 3.73±0.05e 27.96±0.59de 2.81±0.06d 26.53±0.30cd W2N3 1.78±0.01c 17.38±0.02c 3.13±0.03c 26.25±0.04a 3.79±0.02e 27.70±0.13e 3.12±0.04b 28.67±0.11a W3N1 1.25±0.02d 16.92±0.28c 2.01±0.01f 23.39±0.05d 3.19±0.06f 32.31±0.56b 2.15±0.03e 27.39±0.23bc W3N2 1.14±0.04e 15.18±0.60d 2.27±0.08e 26.03±0.67ab 3.12±0.08f 31.21±0.52b 2.19±0.03e 27.59±0.58abc W3N3 1.14±0.03e 16.70±0.49c 1.64±0.01g 20.10±0.06e 3.13±0.02f 34.40±0.04a 2.04±0.05f 28.21±0.05ab CK 2.03±0.03b 18.69±0.27b 3.27±0.03b 25.91±0.18ab 4.31±0.04c 29.78±0.28c 2.95±0.05c 25.63±0.37d F值 W 2079.017** 127.503** 1462.687** 62.397** 496.053** 110.553** 863.403** 24.560** N 20.179** 3.386* 13.517* 21.943** 10.097* 5.058* 1.410ns 10.674* W×N 13.936* 17.256** 41.071** 47.598** 2.211ns 10.201* 14.336* 4.318*