氮肥缓速配施对机插杂交稻氮素利用特征的影响

吕腾飞,谌洁,马鹏,代邹,杨志远,徐徽,郑传刚,马均

Effects of Combined Application of Slow Release Nitrogen Fertilizer and Urea on the Nitrogen Utilization Characteristics in Machine- Transplanted Hybrid Rice

LÜ TengFei,SHEN Jie,MA Peng,DAI Zou,YANG ZhiYuan,XU Hui,ZHENG ChuanGang,MA Jun

表3 氮肥缓速配施对2种机插杂交稻氮素积累量的影响

Table 3 Effect of different machine-transplanted methods and N treatments on N accumulation (kg·hm-2)

年份 Year 处理 Treatment 拔节期 Elongation stage 抽穗期 Heading stage 成熟期 Maturity stage 2016 M1N0 27.20±0.53d 93.07±1.33d 138.24±1.25d M1N1 87.08±2.15b 220.60±0.81b 234.28±1.62b M1N2 93.50±1.37a 188.59±0.78c 215.34±0.83c M1N3 70.60±2.14c 229.21±3.46a 240.34±0.49a M2N0 40.71±0.64d 79.77±1.83d 130.67±1.49d M2N1 84.97±0.86b 191.60±3.37b 220.27±1.42b M2N2 90.35±0.71a 161.51±1.05c 209.40±2.16c M2N3 76.95±0.77c 221.13±5.70a 235.36±4.20a M 20.50* 134.29** 225.03** N 787.38** 346.68** 908.66** M×N 17.72** 9.42** 1.71ns 2017 M1N0 27.30±0.11d 87.08±2.29c 144.60±3.16c M1N1 92.64±1.55b 216.92±1.92a 246.55±1.97a M1N2 102.02±2.36a 174.79±4.52b 216.91±1.99b M1N3 83.41±2.45c 218.62±4.53a 249.01±3.08a M2N0 31.39±1.00c 71.90±1.06d 132.85±2.29d M2N1 91.24±1.36a 177.83±2.73b 227.15±0.75b M2N2 94.93±3.01a 162.98±2.69c 210.06±4.96c M2N3 84.62±0.82b 202.21±3.34a 236.07±2.30a M 0.60ns 215.94** 654.57** N 662.11** 904.02** 551.82** M×N 3.74* 10.11** 1.61ns