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4 少耕与氮肥配施条件下耕层土壤AN、AP和AK含量的变化

Table 4 Changes in AN， AN and AK under the condition of reduced tillage combined with N application

处理	2022年			2023年			2024年
处理	AN /(mg·kg^-1)	AP /(mg·kg^-1)	AK /(mg·kg^-1)	AN /(mg·kg^-1)	AP /(mg·kg^-1)	AK /(mg·kg^-1)	AN /(mg·kg^-1)	AP /(mg·kg^-1)	AK /(mg·kg^-1)
CK	36.6±1.40^d	19.4±1.47^b	168.4±6.32^b	35.2±1.36^e	18.1±1.30^d	160.1±6.09^d	34.1±1.33^f	17.2±1.16^e	146.2±5.01^e
TT-N1	44.6±1.33^c	21.7±1.95^ab	176.5±6.89^ab	43.6±1.23^d	20.1±1.48^c	169.3±6.23^c	39.1±1.16^e	18.9±1.36^cd	159.4±5.26^d
TT-N2	49.4±1.89^b	23.6±2.03^ab	182.4±7.74^a	48.4±1.94^cd	22.4±1.45^b	173.5±6.71^bc	43.5±1.73^d	20.1±1.77^c	166.1±5.73^cd
TT-N3	57.6±2.25^a	25.3±1.66^a	190.7±8.81^a	55.6±2.36^b	23.3±1.69^b	184.5±8.12^b	51.6±2.41^c	23.4±1.60^bc	170.4±8.35^c
NT-N1	—	—	—	49.3±1.39^c	22.5±1.24^b	180.1±6.26^b	54.1±1.45^c	24.6±1.28^b	193.2±7.03^b
NT-N2	—	—	—	55.9±2.01^b	25.9±2.13^ab	196.1±7.13^ab	60.3±2.16^b	28.7±2.30^ab	208.5±7.21^ab
NT-N3	—	—	—	62.5±2.30^a	28.6±1.72^a	204.5±8.19^a	69.5±2.69^a	33.5±1.77^a	221.3±8.36^a