多元化种植模式下秸秆还田配合水氮管理对水稻产量形成与氮素吸收利用的影响

胡明明, 丁峰, 彭志芸, 向开宏, 李郁, 张宇杰, 杨志远, 孙永健, 马均

Effects of straw returning to field combined with water and N management on rice yield formation and N uptake and utilization under diversified cropping patterns

HU Ming-Ming, DING Feng, PENG Zhi-Yun, XIANG Kai-Hong, LI Yu, ZHANG Yu-Jie, YANG Zhi-Yuan, SUN Yong-Jian, MA Jun

表6 多元化种植模式下秸秆还田配合水氮管理对水稻氮素积累量的影响

Table 6 Effects of straw returning to field combined with water and N management on rice N accumulation under diversified cropping patterns

处理 Treatment			拔节期Jointing		齐穗期Heading			成熟期Maturity
处理 Treatment			茎鞘 Stem sheath	叶 Leaf	茎鞘 Stem sheath	叶 Leaf	穗 Panicle	茎鞘 Stem sheath	叶 Leaf	穗 Panicle
P_y	W₀	N₀	11.65 c	17.04 c	16.93 c	17.02 b	11.40 c	8.46 b	8.55 b	60.33 b
		N₁	17.64 a	34.26 a	50.28 b	54.67 a	20.09 a	24.02 a	22.04 a	106.41 a
		N₂	16.85 b	32.93 b	55.29 a	54.71 a	19.23 b	25.33 a	22.10 a	93.83 a
	均值Average		15.39	28.08	40.84	42.15	16.91	19.28	17.57	86.86
	W₁	N₀	11.17 c	16.38 c	19.68 c	23.35 c	12.89 b	9.72 b	10.67 b	58.19 b
		N₁	23.36 a	36.61 a	53.39 b	55.69 b	23.62 a	25.31 a	25.26 a	107.96 a
		N₂	21.39 b	32.99 b	56.74 a	59.69 a	22.75 a	26.37 a	26.78 a	96.25 a
	均值Average		18.65	28.66	43.27	46.25	19.76	20.14	20.91	87.48
P_x	W₀	N₀	11.09 c	17.17 c	15.99 b	17.76 c	11.42 b	9.48 b	6.48 c	57.74 b
		N₁	18.95 a	28.94 a	45.40 a	47.73 b	18.27 a	16.99 a	16.98 b	104.61 a
		N₂	17.37 b	26.35 b	47.17 a	52.77 a	17.42 a	17.21 a	18.50 a	98.26 a
	均值Average		15.81	24.16	36.19	39.43	15.71	14.55	13.99	86.88
	W₁	N₀	11.06 c	18.60 c	19.22 c	20.64 c	11.83 b	9.54 c	7.47 c	61.83 b
		N₁	19.65 a	29.77 a	48.18 b	50.50 b	20.71 a	17.78 b	17.27 b	115.72 a
		N₂	17.09 b	26.97 b	54.82 a	56.99 a	19.70 a	19.71 a	19.15 a	106.75 a
	均值Average		15.94	25.12	40.75	42.72	17.41	15.68	14.64	94.77
P_q	W₀	N₀	8.80 c	13.91 c	12.94 b	13.71 b	10.48 b	7.54 b	4.78 b	57.48 b
		N₁	17.52 a	24.34 a	43.11 a	44.50 a	18.93 a	17.34 a	13.87 a	103.22 a
		N₂	15.98 b	21.48 b	44.15 a	45.93 a	18.79 a	17.47 a	14.19 a	99.40 a
	均值Average		14.11	19.91	33.40	34.72	16.07	14.13	10.96	86.71
	W₁	N₀	10.27 c	15.46 c	14.25 c	15.30 c	11.87 b	7.60 b	5.71 b	60.05 b
		N₁	18.31 a	24.35 a	43.94 b	46.51 b	19.74 a	17.71 a	16.26 a	106.67 a
		N₂	16.60 b	21.61 b	45.75 a	48.59 a	19.26 a	18.02 a	16.60 a	101.63 a
	均值Average		15.06	20.48	34.65	36.80	16.97	14.44	12.87	89.46
F值 F-value		P	160.12^**	2052.90^*	522.32^**	168.68^**	97.47^**	286.05^**	5841.70^**	8.54^*
		W	118.68^**	255.48^**	60.21^**	152.28^**	193.97^**	13.91^**	35.62^**	26.19^**
		N	1495.94^**	13,019.27^**	4718.69^**	6628.52^**	729.50^**	1944.95^**	1365.30^**	1950.72^**
		P×W	49.37^**	8.44^*	7.45^*	5.25^*	193.97^**	1.33 ns	5.59^*	8.69^*
		P×N	3.82^*	698.13^**	13.62^**	16.46^**	3.60^*	77.31^**	18.86^**	5.47^*
		W×N	20.13^**	10.59^**	1.70 ns	5.11^*	3.15 ns	1.01 ns	2.79 ns	2.95 ns
		P×W×N	24.17^**	31.90^**	3.64^*	3.71^*	2.24 ns	3.49^*	1.66 ns	0.83 ns