不同氮肥增效剂对减少豫北麦田气态氮损失及其增产效果研究

贺云霞, 马建辉, 张黛静, 刘东华, 晁晓燕, 陈慧平, 李春喜

Study on the Effect of Different Nitrogen Fertilizer Synergists on Reducing Gaseous Nitrogen Loss and Increasing Yield in Wheat Field of Northern Henan

He Yunxia, Ma Jianhui, Zhang Daijing, Liu Donghua, Chao Xiaoyan, Chen Huiping, Li Chunxi

表3 不同氮肥增效剂对小麦氮素利用效率的影响

Table 3 Effects of different nitrogen fertilizer synergists on nitrogen use efficiency of wheat

处理 Treatment 氮素偏生产力 NPFP (kg/kg) 氮肥农学效率 NAE (kg/kg) 氮素收获指数 NHI (%) CK － － 61.64±1.63c U1 48.74±0.59cd 12.15±1.15b 64.30±0.19bc U2 42.25±0.79d 10.60±0.03b 64.64±0.68bc T1 55.65±0.09ab 19.06±0.40a 69.07±0.20a T2 48.86±0.72cd 12.27±0.14b 63.38±0.95c T3 60.66±0.80a 24.06±1.02a 64.40±0.59bc T4 43.02±1.10d 11.37±0.37b 65.10±0.99bc T5 42.54±0.49d 10.89±0.94b 61.34±0.59c T6 51.27±0.58bc 19.62±0.51a 67.98±0.70ab