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7 氮肥缓速配施对2种机插杂交稻氮素利用特征的影响

Table 7 Effect of different machine-transplanted methods and N treatments on N use efficiency

年份 Year 处理 Treatment 回收利用率 N recovery efficiency (%) 农学利用率 N agronomic efficiency (kg·kg-1) 生理利用率 N physiological efficiency (kg·kg-1) 偏生产力 Partial factor productivity (kg·kg-1) 2016 M1N1 64.03±1.91a 29.40±0.78ab 45.95±0.83b 50.98±1.28b M1N2 51.40±1.38b 26.79±1.03b 52.30±1.43a 80.38±1.17a M1N3 68.07±0.99a 33.08±1.78a 48.58±1.44ab 77.77±1.22a M2N1 59.73±1.79b 25.09±2.17ab 41.93±2.89a 47.11±0.83b M2N2 52.48±1.56c 22.90±0.24b 43.71±1.39a 72.20±1.82a M2N3 69.79±3.69a 28.96±1.83a 41.46±0.57a 70.01±1.06a M 0.69ns 13.29ns 11.63ns 341.82** N 67.78** 10.27** 1.66ns 373.78** M×N 2.54ns 0.01ns 0.51ns 2.32ns 2017 M1N1 67.97±3.33a 28.67±2.03ab 42.12±1.29c 48.91±1.13b M1N2 48.21±2.08b 25.70±1.96b 53.19±1.96a 77.58±1.18a M1N3 69.61±1.38a 32.28±1.03a 46.45±2.25b 74.61±1.71a M2N1 62.87±1.12a 26.04±0.72ab 41.43±1.20b 45.93±0.97b M2N2 51.47±4.61b 24.26±2.27b 47.22±2.12a 71.97±0.75a M2N3 68.81±1.91a 29.02±0.83a 42.18±0.30ab 70.19±1.32a M 0.05ns 4.38ns 9.62ns 110.61** N 56.32** 7.76* 14.82** 216.19** M×N 2.34ns 0.20ns 1.44ns 0.41ns