水肥“三匀”技术对水稻水、氮利用效率的影响

杨志远,李娜,马鹏,严田蓉,何艳,蒋明金,吕腾飞,李郁,郭翔,胡蓉,郭长春,孙永健,马均

Effects of methodical nitrogen-water distribution management on water and nitrogen use efficiency of rice

Zhi-Yuan YANG,Na LI,Peng MA,Tian-Rong YAN,Yan HE,Ming-Jin JIANG,Teng-Fei LYU,Yu LI,Xiang GUO,Rong HU,Chang-Chun GUO,Yong-Jian SUN,Jun MA

表6 水氮管理对不同氮效率水稻氮素积累及氮肥利用的影响

Table 6 Effects of nitrogen-water management modes on N accumulation and N fertilizer utilization of hybrid rice with different N use efficiencies

因素 Factor	处理 Treatment	试验1 Exp.1			试验2 Exp.2			试验3 Exp.3
因素 Factor	处理 Treatment	总吸氮量 TNA (kg hm^-2)	氮肥回收率 NRE (%)	氮肥农学利用率NAE (kg kg^-1)	总吸氮量 TNA (kg hm^-2)	氮肥回收率 NRE (%)	氮肥农学利用率NAE (kg kg^-1)	总吸氮量 TNA (kg hm^-2)
品种 Cultivar (C)	D4103	150.65 a	51.56 a	19.07 a	171.06 a	48.60 a	17.40 a	202.35 a
	F498	—	—	—	—	—	—	200.31 a
	Y3724	140.71 b	48.53 a	17.72 a	158.77 b	42.94 a	15.87 a	173.82 b
	C6203	—	—	—	—	—	—	173.11 b
氮肥管理 Nitrogen management (N)	CTF	108.42 d	—	—	126.39 d	—	—	—
	FU	176.20 b	45.18 b	12.01 c	185.65 b	39.51 c	10.76 c	175.50 c
	CTN	110.59 cd	—	—	135.39 d	—	—	—
	NWC	186.25 a	50.44 a	18.99 b	204.64 a	46.14 b	18.00 b	196.73 a
	CTM	113.60 c	—	—	137.67 c	—	—	—
	MNWD	179.01 b	54.51 a	24.19 a	199.69 a	51.67 a	21.14 a	189.96 b
F值 F-value	C	94.74^**	4.67^NS	3.94^NS	408.63^**	13.62^NS	0.68^NS	173.71^**
	N	39.00^**	9.74^**	85.00^**	179.92^**	14.72^**	48.79^**	60.55^**
	N*C	0.57^NS	0.08^NS	0.82^NS	0.79^NS	0.68^NS	0.30^NS	1.42^NS