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2 不同处理夏玉米生育期的滴灌量

Table 2 Drip irrigation amount in growing period of summer maize under different treatments (mm)

处理 Treatment 苗期-拔节期 Seedling-jointing stage 拔节期- 大喇叭口期 Jointing-flare opening stage 大喇叭口期- 吐丝期 Flare opening- silking stage 吐丝期-灌浆期 Silking-filling stage 总滴灌量 Total drip irrigation amount 2014 DU+W40 42.10 33.13 45.65 53.26 174.15 DU+W60 90.37 73.78 82.50 107.53 354.18 DU+W80 134.53 82.83 122.34 153.60 493.30 DS+W40 46.90 51.23 58.55 24.18 180.85 DS+W60 87.19 71.88 100.67 65.03 324.77 DS+W80 139.21 114.93 127.59 150.56 532.29 2015 DU+W40 30.13 25.24 47.06 62.54 164.97 DU+W60 30.92 43.03 76.84 99.47 250.26 DU+W80 28.45 61.32 106.05 177.53 373.36 DS+W40 36.54 40.33 52.30 55.12 184.29 DS+W60 46.66 49.44 85.61 112.48 294.19 DS+W80 47.56 69.23 122.24 172.51 411.54