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7 多元化种植模式下秸秆还田配合水氮管理对水稻氮素转运的影响

Table 7 Effects of straw returning to field combined with water and N management on rice N transport under diversified cropping patterns

处理 Treatment			茎鞘氮素转运Stem sheath N transport			叶片氮素转运Leaf N transport
处理 Treatment			转运量 Transfer amount (kg hm^-2)	输出率 Output rate (%)	贡献率Contribution rate (%)	转运量 Transfer amount (kg hm^-2)	输出率 Output rate (%)	贡献率Contribution rate (%)
P_y	W₀	N₀	8.46 c	50.01 a	14.03 c	8.47 b	49.75 b	14.04 c
		N₁	26.25 b	52.19 a	24.70 b	32.62 a	59.65 a	30.78 b
		N₂	29.95 a	54.16 a	31.95 a	32.61 a	59.60 a	34.76 a
	均值Average		21.56	52.12	23.56	24.57	56.34	26.53
	W₁	N₀	9.95 c	50.58 a	17.11 c	12.68 c	54.30 a	21.79 c
		N₁	28.07 b	52.54 ab	25.99 b	30.43 b	54.63 a	28.18 b
		N₂	31.37 a	55.28 a	32.59 a	32.91 a	55.12 a	34.19 a
	均值Average		23.14	52.80	25.23	25.34	54.69	28.05
P_x	W₀	N₀	6.50 b	40.65 b	11.27 c	11.28 c	63.50 a	19.53 c
		N₁	28.46 a	62.61 a	27.20 b	30.75 b	64.39 a	29.39 b
		N₂	29.96 a	63.46 a	30.50 a	34.26 a	64.91 a	34.89 a
	均值Average		21.64	55.58	22.99	25.43	64.27	27.94
	W₁	N₀	9.68 c	50.31 b	15.64 c	13.17 c	63.79 b	21.33 c
		N₁	30.40 b	63.09 a	26.28 b	33.23 b	65.79 a	28.75 b
		N₂	35.10 a	64.03 a	32.88 a	37.83 a	66.37 a	35.44 a
	均值Average		25.07	59.45	24.94	28.08	65.32	28.51
P_q	W₀	N₀	5.39 b	41.59 b	9.38 b	8.93 b	65.08 a	15.54 b
		N₁	25.77 a	59.76 a	24.98 a	30.62 a	68.85 a	29.67 a
		N₂	26.67 a	60.35 a	26.90 a	31.74 a	69.04 a	31.98 a
	均值Average		19.28	53.90	20.42	23.77	67.75	25.74
	W₁	N₀	6.64 b	46.61 b	11.09 c	9.58 b	62.63 a	15.96 c
		N₁	26.34 a	59.93 a	24.69 b	30.24 a	65.07 a	28.36 b
		N₂	27.63 a	60.37 a	27.20 a	31.99 a	65.81 a	31.47 a
	均值Average		20.21	55.64	20.99	23.94	64.50	25.27
F值 F-value		P	65.74^**	42.28^**	238.25^**	25.18^**	2025.45^**	10.83^*
		W	35.55^**	19.56^**	18.17^**	15.43^**	3.20^*	3.28^*
		N	1244.18^**	178.65^**	490.53^**	2058.42^**	15.91^**	436.07^**
		P×W	5.08^*	3.49 ns	1.64 ns	5.98^*	3.09 ns	2.56 ns
		P×N	3.65^*	24.66^**	4.29^**	2.71 ns	1.38 ns	3.43^*
		W×N	0.59 ns	6.22^**	3.61^*	4.29^*	3.19^*	10.38^**
		P×W×N	0.67 ns	2.11 ns	0.71 ns	4.02^*	3.39^*	3.75^*