不同肥料替代化学氮肥对土壤不同形态氮素及马铃薯产量的影响

杜二小, 张利荣, 任永峰, 高宏艳, 张君, 张鹏, 高宇, 王海霞, 赵沛义

Effects of Replacing Chemical Nitrogen Fertilizer with Different Fertilizers on Soil Nitrogen Fractions and Potato Yield

Du Erxiao, Zhang Lirong, Ren Yongfeng, Gao Hongyan, Zhang Jun, Zhang Peng, Gao Yu, Wang Haixia, Zhao Peiyi

表5 不同施肥处理对马铃薯产量和ANUE的影响

Table 5 Effects of different fertilization measures on potato yield and ANUE

年份 Year 处理 Treatment 产量 Yield (kg/hm2) 氮肥偏 生产力 PFPN (kg/kg) 氮肥农学 利用效率 ANUE (kg/kg) 2022 CK 28 798.35±145.67c － － NPK 32 564.70±234.43b 120.62±8.56d 13.88±3.13c RN 30 256.45±174.34c 140.07±10.45c 6.75±1.42d RN+WF 32 577.46±234.76b 150.82±12.56b 17.49±2.35b RN+SM 35 634.51±225.83a 164.97±7.89a 31.64±3.87a RN+BM 34 785.97±236.65a 161.04±8.24a 27.72±3.89a RN+RUN 34 567.34±218.78a 160.03±10.76a 26.70±2.97ab 2023 CK 28 487.70±156.76c － － NPK 30 672.23±215.58b 113.60±10.44c 8.09±1.69c RN 29 457.85±163.34bc 136.37±13.67b 4.49±0.76d RN+WF 30 979.42±165.45b 143.42±12.98b 11.53±2.84c RN+SM 34 938.40±232.67a 161.75±8.54a 29.86±3.56a RN+BM 34 326.00±215.89a 158.91±9.45a 27.02±4.02a RN+RUN 33 245.77±245.67ab 153.91±10.58ab 22.02±3.15b