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2 不同肥料部分替代氮肥对土壤全氮含量的影响

Table 2 Effects of partial replacement of nitrogen fertilizer by different fertilizers on soil total nitrogen content g/kg

年份 Year 处理 Treatment 土层Soil layer 0~20 cm 20~40 cm 40~60 cm 2022 CK 1.53±0.02c 1.58±0.03c 1.42±0.02c NPK 1.65±0.04bc 1.69±0.03bc 1.51±0.02bc RN 1.73±0.03ab 1.78±0.04ab 1.69±0.03ab RN+WF 1.75±0.05ab 1.72±0.03abc 1.73±0.03a RN+SM 1.78±0.05a 1.84±0.07a 1.74±0.05a RN+BM 1.81±0.06a 1.74±0.05abc 1.69±0.04ab RN+RUN 1.76±0.04ab 1.77±0.06ab 1.54±0.06bc 2023 CK 1.56±0.03c 1.51±0.03d 1.39±0.01d NPK 1.71±0.04b 1.71±0.04c 1.56±0.03c RN 1.68±0.04b 1.79±0.05b 1.71±0.04b RN+WF 1.79±0.05ab 1.73±0.04c 1.69±0.05b RN+SM 1.83±0.06a 1.86±0.07a 1.78±0.05a RN+BM 1.72±0.05b 1.72±0.05c 1.73±0.04ab RN+RUN 1.81±0.06ab 1.79±0.06b 1.62±0.03bc