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3 不同施肥处理对土壤铵态氮含量的影响

Table 3 Effects of different fertilization treatments on soil ammonium 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 3.98±0.04c 3.56±0.07c 3.53±0.09c NPK 4.51±0.06b 4.62±0.18b 4.47±0.15ab RN 4.25±0.03b 4.54±0.24b 4.06±0.27b RN+WF 5.87±0.16ab 6.53±0.15ab 5.43±0.19a RN+SM 6.98±0.47a 7.03±0.26a 5.74±0.28a RN+BM 6.03±0.25a 6.71±0.31a 5.72±0.34a RN+RUN 5.98±0.23a 6.61±0.32a 5.67±0.26a 2023 CK 3.54±0.02c 3.25±0.15c 2.74±0.04c NPK 5.28±0.25ab 4.83±0.32c 4.32±0.17ab RN 4.32±0.13b 5.77±0.26bc 3.25±0.09b RN+WF 4.88±0.18b 6.41±0.17ab 4.55±0.23a RN+SM 7.05±0.27a 7.92±0.37a 5.12±0.22a RN+BM 6.73±0.33a 6.86±0.33a 5.07±0.31a RN+RUN 6.11±0.41a 6.55±0.24a 4.96±0.19a