滴灌模式和水分调控对夏玉米干物质和氮素积累与分配及水分利用的影响

杨明达,关小康,刘影,崔静宇,丁超明,王静丽,韩静丽,王怀苹,康海平,王同朝

Effects of drip irrigation pattern and water regulation on the accumulation and allocation of dry matter and nitrogen, and water use efficiency in summer maize

Ming-Da YANG,Xiao-Kang GUAN,Ying LIU,Jing-Yu CUI,Chao-Ming DING,Jing-Li WANG,Jing-Li HAN,Huai-Ping WANG,Hai-Ping KANG,Tong-Chao WANG

表4 滴灌模式和水分调控对夏玉米花后营养器官干物质再分配量及干物质积累量的影响(2015)

Table 4 Effects of drip irrigation patterns and water regulation on dry matter remobilization during grain filling and accumulated dry matter after silking of summer maize in 2015

处理 Treatment 吐丝前贮藏 干物质转运量 DMR (kg hm-2) 吐丝前贮藏干物质转运量对籽粒的贡献率 CDMR (%) 吐丝后干物质 积累量 ADM (kg hm-2) 吐丝后干物质积累量 对籽粒贡献率 CADM (%) DU W40 1379.25 ab 22.25 b 4818.60 d 77.75 c W60 1229.28 b 14.85 c 7047.88 b 85.15 ab W80 1283.38 b 15.20 c 7161.48 b 84.80 ab 平均值Mean 1297.30 16.98 6342.70 83.02 DS W40 1450.75 a 25.57 a 4221.81 e 74.43 d W60 1355.37 ab 17.25 c 6499.70 c 82.75 b W80 1328.63 b 14.52 c 7824.87 a 85.55 a 平均值Mean 1344.92 19.11 6182.13 80.89 F值 F-value 滴灌模式 Drip irrigation pattern 2.12 10.50* 4.73 10.50* 水分调控 Water regulation 11.37** 133.03** 876.78** 133.03** 交互作用 Interaction 17.86** 44.81** 106.89** 44.81**