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6 2016年不同氮肥运筹下各处理氮素利用率

Table 6 Effects of different nitrogen fertilizers on nitrogen use efficiency in 2016

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)^#	1.22±0.05 cde	32.8±2.3 cde	20.1±0.5 b	31.5±0.8 bcd
		(6, 13)	1.15±0.12 de	28.8±7.1 de	17.6±0.3 b	29.4±0.6 bcd
		(7, 11)	1.28±0.11 bcd	36.6±7.6 bcd	22.1±1.8 b	33.4±3.3 abcd
		(7, 13)	1.21±0.02 cde	32.4±1.3 cde	17.6±2.1 b	26.9±1.9 cd
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, 11)	1.37±0.10 ab	42.6±7.3 ab	26.7±3.4 ab	37.2±11.9 ab
		(8, 13)	12.30±0.01 cd	33.7±0.8 cde	22.6±2.5 b	34.0±4.6 abc
	6:4	(6, 11)	1.27±0.04 bcd	36.2±3.8 bcd	23.6±0.3 ab	34.8±0.3 abc
		(6, 13)	1.10±0.01 e	25.5±1.1 e	18.6±0.3 b	30.1±0.4 bcd
		(7, 11)	1.42±0.14 ab	45.5±9.9 ab	25.2±2.5 b	35.8±4.3 abc
		(7, 13)	1.31±0.08 abc	38.7±5.6 abc	17.6±1.8 b	28.8±2.8 bcd
		(8, 11)	1.43±0.02 a	45.8±1.5 a	32.2±1.0 a	42.2±1.9 a
		(8, 13)	1.16±0.06 de	29.2±4.6 de	24.1±0.8 ab	35.1±1.3 abc
	N0	(0, 0)	0.70±0.02 f	—	—	—
沈农265 Shennong 265	8:2	(7, 12)	1.15±0.00 d	28.1±0.9 d	19.1±0.8 ef	36.6±2.8 d
		(7, 14)	1.07±0.01 e	23.2±1.6 e	17.6±0.3 f	34.8±1.9 c
		(8, 12)	1.16±0.01 d	28.9±2.3 d	21.1±1.0 def	39.4±5.9 c
		(8, 14)	1.13±0.03 d	27.3±0.5 d	20.1±1.5 ef	38.3±3.7 c
		(9, 12)	1.36±0.01 b	41.4±1.3 ab	27.7±0.8 b	43.5±3.1 bc
		(9, 14)	1.05±0.02 e	21.9±1.4 e	21.6±0.8 def	39.2±5.2 bc
	6:4	(7, 12)	1.22±0.02 c	32.9±2.1 c	21.6±2.0 de	39.8±6.7 bc
		(7, 14)	1.06±0.02 e	22.7±0.5 e	20.1±1.0 ef	35.1±1.5 bc
		(8, 12)	1.35±0.02 b	40.7±3.9 b	25.7±1.5 bc	40.8±1.9 bc
		(8, 14)	1.16±0.01 d	28.9±1.6 d	23.1±1.5 cde	39.0±2.8 bc
		(9, 12)	1.42±0.03 a	45.3±3.7 a	31.2±0.8 a	46.5±4.2 abc
		(9, 14)	1.17±0.06 d	29.5±2.8 d	24.6±1.5 bcd	38.9±4.8 ab
	N0	(0, 0)	0.70±0.02 f	—	—	—
沈农1401 Shennong 1401	8:2	(8, 13)	1.31±0.09 bcde	36.4±6.2 bcde	28.7±2.8 bcd	36.8±4.9 bcd
		(8, 15)	1.17±0.04 ef	27.5±3.3 e	24.1±2.3 de	33.0±4.1 de
		(9, 13)	1.43±0.07 ab	43.9±5.1 b	24.1±1.8 de	32.7±3.1 de
		(9, 15)	1.21±0.06 ef	29.7±4.2 de	21.6±1.5 e	30.5±2.6 e
		(10, 13)	1.42±0.07 ab	43.2±4.9 b	30.2±2.3 abc	38.4±4.1 abc
		(10, 15)	1.24±0.07 cdef	31.9±5.2 cde	23.1±2.0 de	32.2±3.4 de
	6:4	(8, 13)	1.39±0.16 abc	41.2±10.6 bc	32.2±1.5 ab	41.2±1.0 ab
		(8, 15)	1.23±0.02 def	31.1±2.3 cde	26.2±0.5 cde	34.5±1.1 cde
		(9, 13)	1.44±0.12 ab	44.3±8.4 ab	27.2±0.8 bcd	35.2±1.2 cde
		(9, 15)	1.16±0.05 f	26.6±3.6 e	24.6±1.3 de	33.3±2.2 de
		(10, 13)	1.47±0.11 a	46.2±7.2 a	34.7±1.0 a	43.2±1.4 a
		(10, 15)	1.36±0.06 abcd	39.4±4.6 bcd	24.1±1.0 de	32.9±1.8 de
	N0	(0, 0)	0.73±0.04 g	—	—	—