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4 不同施肥处理对土壤硝态氮含量的影响

Table 4 Effects of different fertilization treatments on soil nitrate nitrogen content mg/kg

年份 Year 处理 Treatment 土层Soil layer 0~20 cm 20~40 cm 40~60 cm 2022 CK 12.27±0.56c 12.96±0.45c 7.99±0.31d NPK 17.54±0.63b 19.57±0.63b 9.85±0.38c RN 17.86±0.58b 18.78±0.58b 9.76±0.41c RN+WF 18.64±0.72b 19.95±0.61b 12.69±0.46b RN+SM 23.99±0.85a 24.95±0.79a 15.72±0.51a RN+BM 22.30±0.93a 22.95±0.72a 14.81±0.49a RN+RUN 17.68±0.75b 22.71±0.68ab 14.83±0.56a 2023 CK 13.15±0.63c 12.44±0.35c 9.11±0.42b NPK 17.35±0.57b 20.13±0.69ab 14.32±0.49a RN 16.33±0.57b 17.25±0.58b 9.79±0.38b RN+WF 16.88±0.62b 20.57±0.72ab 10.31±0.42b RN+SM 24.15±0.73a 24.18±0.83a 15.31±0.51a RN+BM 23.71±0.68a 23.33±0.76a 14.15±0.48a RN+RUN 18.67±0.71b 23.18±0.81a 13.52±0.55ab