不同节水灌溉方式对夏玉米生长、产量及水分利用的影响

王怀苹, 杨明达, 张素瑜, 李帅, 关小康, 王同朝

Effects of Different Water-Saving Irrigation Modes on Growth, Yield, and Water Utilization of Summer Maize

Wang Huaiping, Yang Mingda, Zhang Suyu, Li Shuai, Guan Xiaokang, Wang Tongchao

表3 不同节水灌溉方式下夏玉米的蒸散量及水分利用效率

Table 3 Evapotranspiration and water use efficiency of summer maize under different water-saving modes

处理 Treatment 土壤贮水消耗量 Soil storage water consumption (mm) 蒸散量 Evapotranspiration (mm) 水分利用效率 Water use efficiency [kg/(hm2·mm)] 土面蒸发量Soil evaporation (mm/d) 拔节期―吐丝期 Jointing-silking stage 吐丝期―成熟期 Silking-maturity FI 55.79a 295.79a 21.64c 1.47a 0.96a DI 46.65ab 286.65ab 24.44b 1.36a 0.68b SDI 40.54b 280.54b 27.96a 0.50b 0.38c MI 37.65b 277.65b 26.69a 0.54b 0.40c