不同叶龄蘖、穗氮肥组合对粳稻产量及氮素利用的影响

王艳,易军,高继平,张丽娜,杨继芬,赵艳泽,辛威,甄晓溪,张文忠

Effects of precision leaf age fertilization on yield and nitrogen utilization of
japonica rice

Yan WANG,Jun YI,Ji-Ping GAO,Li-Na ZHANG,Ji-Fen YANG,Yan-Ze ZHAO,Wei XIN,Xiao-Xi ZHEN,Wen-Zhong ZHANG

表7 2017年不同氮肥运筹下各处理氮素利用率

Table 7 Effects of different nitrogen fertilizers on nitrogen use efficiency in 2017

品种 Cultivar	基蘖肥:穗肥 B:P	处理时期 Treatment	每筒氮积累总量 N total uptake (g pot^-1)	吸收利用率 Recovery efficiency (%)	农学利用率 Agronomic efficiency (kg kg^-1N)	偏生产力 Partial factor productivity (kg kg^-1N)
吉粳88 Jigeng 88	8:2	(6, 11)^#	1.10±0.07 de	21.8±0.7 bcd	25.2±3.3 abc	36.2±2.1 b
		(6, 13)	1.02±0.06 e	16.8±0.8 d	20.1±1.5 bc	36.0±2.4 b
		(7, 11)	1.28±0.03 bc	30.4±6.2 abc	29.2±2.0 abc	37.3±2.6 b
		(7, 13)	1.10±0.06 de	19.0±13.7 cd	21.6±2.0 abc	36.2±1.2 b
		(8, 11)	1.29±0.04 bc	30.7±6.6 abc	36.2±3.5 a	41.4±2.3 ab
		(8, 13)	1.26±0.05 c	28.9±7.4 abcd	30.2±2.4 abc	36.3±1.7 b
	6:4	(6, 11)	1.32±0.05 bc	35.3±0.8 a	25.7±2.3 abc	36.4±2.9 b
		(6, 13)	1.03±0.04 e	17.0±1.5 d	20.6±0.8 abc	37.4±2.3 b
		(7, 11)	1.33±0.03 abc	33.3±5.5 ab	25.2±3.3 abc	43.5±2.2 ab
		(7, 13)	1.15±0.07 d	22.1±13.5 bcd	27.7±3.0 abc	40.5±3.7 ab
		(8, 11)	1.42±0.03 a	38.7±1.8 a	36.7±4.0 a	47.2±1.4 a
		(8, 13)	1.37±0.05 ab	35.5±4.9 a	29.2±0.8 abc	42.3±2.6 ab
	N0	(0, 0)	0.76±0.06 f	—	—	—
沈农265 Shennong 265	8:2	(7, 12)	1.21±0.05 d	28.3±2.7 d	24.1±5.0 bc	39.5±15.2 de
		(7, 14)	1.18±0.05 d	26.9±1.3 d	16.6±2.3 d	33.1±6.5 e
		(8, 12)	1.46±0.04 ab	44.1±2.3 ab	25.2±3.5 bc	41.4±4.3 cde
		(8, 14)	1.30±0.04 c	34.4±2.7 c	17.1±2.1 d	34.9±6.7 de
		(9, 12)	1.47±0.01 ab	45.0±1.6 ab	28.2±2.9 ab	47.8±5.5 ab
		(9, 14)	1.42±0.04 b	41.5±1.2 b	21.1±2.1 cd	38.4±7.3 de
	6:4	(7, 12)	1.43±0.03 ab	42.3±3.5 ab	26.7±2.6 b	42.5±5.2 bcd
		(7, 14)	1.22±0.01 d	29.0±1.6 d	23.1±2.6 cd	38.4±7.5 de
		(8, 12)	1.47±0.05 ab	44.7±4.1 ab	26.7±2.3 b	33.3±19.0 de
		(8, 14)	1.41±0.04 b	41.0±3.0 b	23.1±2.5 cd	39.0±5.4 de
		(9, 12)	1.49±0.04 a	46.3±2.9 a	29.7±3.6 a	43.8±11.5 bc
		(9, 14)	1.48±0.00 ab	45.3±2.2 ab	21.6±3.4 cd	38.2±9.9 de
	N0	(0, 0)	0.76±0.04 e	—	—	—
沈农1401 Shennong 1401	8:2	(8, 13)	1.15±0.14 efg	25.2±8.9 efg	20.6±1.5 bc	27.9±5.8 abcd
		(8, 15)	1.00±0.08 g	15.6±5.0 h	15.6±2.5 de	25.8±2.0 cd
		(9, 13)	1.16±0.09 ef	25.6±5.5 ef	24.1±2.6 b	41.7±18.1 ab
		(9, 15)	1.02±0.10 fg	16.5±6.4 g	11.6±2.3 e	30.8±3.9 abcd
		(10, 13)	1.49±0.04 ab	46.3±2.4 ab	31.7±2.8 a	40.9±5.8 ab
		(10, 15)	1.20±0.09 de	28.3±5.8 de	21.6±4.5 bc	37.5±11.2 abc
	6:4	(8, 13)	1.39±0.08 abc	40.3±4.9 abc	23.6±2.5 b	34.4±13.0 abc
		(8, 15)	1.30±0.13 cde	34.4±8.2 cde	19.1±2.8 c	27.5±0.6 bcd
		(9, 13)	1.51±0.06 a	47.6±3.6 a	17.1±1.6 cd	41.0±9.8 a
		(9, 15)	1.28±0.06 cde	33.1±3.8 cde	12.6±2.0 e	32.0±8.1 abcd
品种 Cultivar	基蘖肥:穗肥 B:P	处理时期 Treatment	每筒氮积累总量 N total uptake (g pot^-1)	吸收利用率 Recovery efficiency (%)	农学利用率 Agronomic efficiency (kg kg^-1N)	偏生产力 Partial factor productivity (kg kg^-1N)
沈农1401 Shennong 1401		(10, 13)	1.53±0.03 a	48.8±1.6 a	32.7±2.6 a	41.9±8.4 a
		(10, 15)	1.35±0.12 bcd	37.5±7.3 bcd	20.1±2.3 bc	28.2±4.6 abcd
	N0	(0, 0)	0.77±0.02 h	—	—	—