耕作对渭北旱塬小麦-玉米轮作田土壤水分和产量的影响

郭星宇,王浩,于琦,王瑞,王小利,李军

Effects of Tillage on Soil Moisture and Yield of Wheat-Maize Rotation Field in Weibei Upland Plateau

GUO XingYu,WANG Hao,YU Qi,WANG Rui,WANG XiaoLi,LI Jun

表4 不同冬小麦-休闲-春玉米轮作周期ET、产量与WUE

Table 4 ET, grain yield and WUE in different winter wheat-fallow-spring maize rotation cycle

处理Treatments 周期1 Cycle 1 周期2 Cycle 2 周期3 Cycle 3 周期4 Cycle 4 周期5 Cycle 5 周期6 Cycle 6 平均值 Mean 耗水量 ET (mm) NT 824.2c 676.8b 806.6c 562.1c 662.1b 609.0b 690.1c ST 856.1b 700.9a 826.8b 622.0a 658.8b 678.7a 723.9b CT 888.8a 717.0a 869.7a 607.4b 725.3a 671.6a 746.6a 产量 Yield (kg∙hm-2) NT 13239b 11113b 13339a 14989a 11022a 6830a 11755a ST 13848a 11754a 13218a 14350b 10652b 6467c 11715a CT 13390b 11196b 12958a 14437b 10769b 6673b 11571b WUE (kg∙hm-2∙mm-1) NT 16.1a 16.4a 16.0a 26.7a 16.6a 11.2a 17.2a ST 16.2a 16.8a 16.0a 23.1b 16.2a 9.5b 16.3a CT 15.1b 15.6a 14.9b 23.8b 14.8b 9.9b 15.7b