聚脲甲醛缓释氮肥一次性基施在双季稻上的应用效果

黄巧义, 张木, 黄旭, 唐拴虎, 张发宝, 逄玉万, 易琼, 李苹, 付弘婷

Effect of One-off Application of Poly Urea-Formaldehyde Fertilizer Under Reduced N Rate on Double Cropping Rice

QiaoYi HUANG, Mu ZHANG, Xu HUANG, ShuanHu TANG, FaBao ZHANG, YuWan PANG, Qiong YI, Ping LI, HongTing FU

表3 不同施肥处理的水稻氮肥利用率

Table 3 N use efficiency of rice under different fertilization treatments

造次 Crop 处理 Treatment 氮肥农学效率 NAE (kg?kg-1) 氮肥偏生产力 PFPN (kg?kg-1) 氮肥利用率 NRE (%) 氮肥生理利用率 NPE (kg?kg-1) 早稻 Early rice CK CF 5.50±0.16a 37.29±0.52d 25.12±0.89a 19.09±2.76a UF1 5.91±0.74a 36.11±0.85d 24.37±1.56a 18.87±4.70a UF2 6.67±0.47a 46.79±0.74c 28.43±3.01a 16.01±1.33a UF3 7.43±0.78a 55.36±1.59b 29.01±3.43a 19.76±1.76a UF4 6.11±0.68a 63.70±1.37a 24.18±2.51a 20.08±4.70a 晚稻 Late rice CK CF 6.31±0.83a 29.79±1.01d 35.21±1.89a 19.39±2.87a UF1 6.02±0.94a 29.06±0.72d 30.58±1.48a 23.74±4.80a UF2 6.94±1.10a 36.72±0.98c 36.02±5.03a 25.83±2.71a UF3 7.39±0.97a 44.69±0.94b 36.17±3.34a 23.08±2.57a UF4 7.88±1.13a 50.93±1.86a 35.80±2.03a 27.30±4.23a