干旱绿洲农田少耕与氮肥配施对土壤理化性质、玉米产量及水氮利用效率的影响

康建军, 赵文智, 何志斌, 杨荣, 刘冰, 赵丽雯

Effects of reduced tillage combined with nitrogen application on soil physicochemical properties， maize productivity， and water and nitrogen use efficiency in the arid oasis farmland

Jianjun Kang, Wenzhi Zhao, Zhibin He, Rong Yang, Bin Liu, Liwen Zhao

表3 少耕与氮肥配施条件下耕层土壤SOC、TN和C∶N的变化

Table 3 Changes in SOC， TN and C∶N under the condition of reduced tillage combined with N application

处理 2022年 2023年 2024年 SOC/(g·kg-1) TN/(g·kg-1) C∶N SOC/(g·kg-1) TN/(g·kg-1) C∶N SOC/(g·kg-1) TN/(g·kg-1) C∶N CK 4.35±0.35c 0.39±0.04d 11.15 4.12±0.26f 0.37±0.03d 11.13 4.02±0.20f 0.35±0.21f 11.48 TT-N1 4.38±0.37c 0.49±0.04c 8.94 4.29±0.25f 0.53±0.03bc 8.09 4.10±0.23f 0.44±0.03e 9.32 TT-N2 7.03±0.41b 0.66±0.04b 10.65 6.48±0.30d 0.66±0.02b 9.82 5.31±0.26e 0.56±0.02d 9.48 TT-N3 7.82 ±0.28a 0.84±0.05a 9.31 6.63±0.21c 0.76±0.03a 8.72 5.98±0.19cd 0.70±0.03b 8.54 NT-N1 — — — 5.25±0.29e 0.49±0.04c 10.71 6.40±0.20c 0.51±0.02d 12.55 NT-N2 — — — 7.22±0.31b 0.57±0.04b 12.67 8.86±0.33b 0.63±0.03bc 14.06 NT-N3 — — — 8.10±0.27a 0.78±0.03a 10.38 9.73±0.29a 0.76±0.04a 12.80