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6 滴灌模式和水分调控对夏玉米叶茎器官氮素转运量及其对籽粒氮素贡献率的影响(2015)

Table 6 Effects of drip irrigation patterns and water regulation on nitrogen remobilization and its contribution to grain nitrogen of summer maize in 2015

处理 Treatment 氮素转运量 Nitrogen remobilization (kg hm-2) 氮素转运对籽粒氮素贡献率 Contribution to grain by nitrogen remobilization (%) 叶 Leaf 茎 Stalk 叶 Leaf 茎Stalk DU W40 23.69 a 10.54 a 27.77 a 12.35 b W60 23.27 a 12.42 a 22.30 b 11.90 b W80 22.04 a 12.43 a 21.03 b 11.86 b 平均值Mean 23.00 11.80 23.70 12.04 DS W40 23.01 a 12.63 a 29.55 a 16.22 a W60 23.94 a 11.29 a 23.82 b 11.23 b W80 22.55 a 9.91 a 21.08 b 9.26 b 平均值Mean 23.17 11.28 24.82 12.24 F值 F-value 滴灌模式 Drip irrigation patterns 3.02 2.57 3.35 4.26 水分调控 Water regulation 4.44 3.92 26.61** 14.89** 交互作用 Interaction 3.16 0.85 22.91** 6.33*