不同日产量类型机插杂交籼稻的氮素吸收利用特性

邓飞,何连华,陈多,田青兰,李秋萍,曾玉玲,李博,陈虹,王丽,任万军

Characteristics of Nitrogen Absorption and Utilization of Machine- Transplanted Indica Hybrid Rice with Different Daily Yield Types

DENG Fei,HE LianHua,CHEN Duo,TIAN QingLan,LI QiuPing,ZENG YuLing,LI Bo,CHEN Hong,WANG Li,REN WanJun

表4 不同日产量类型机插杂交籼稻氮素分配特性

Table 4 N distribution characteristics of machine-transplanted indica hybrid rice with different daily yield types

年份 Year	日产量类型 Daily yield	拔节期JS (%)		齐穗期HS (%)			成熟期MS (%)
年份 Year	日产量类型 Daily yield	叶片 Leaf lamina	茎鞘 Stem plus sheath	叶片 Leaf lamina	茎鞘 Stem plus sheath	穗 Panicle	叶片 Leaf lamina	茎鞘 Stem plus sheath	穗 Panicle
2017	高日产HDY	66.02ab	33.98bc	48.31c	34.02a	17.67b	11.78b	19.63cd	68.58a
	中日产MDY	65.37abc	34.63abc	48.25c	32.36ab	19.39a	13.63a	22.10ab	64.27b
	低日产LDY	67.00a	33.00c	48.97c	31.87b	19.16a	13.89a	17.85d	68.25a
	平均Mean	66.13A	33.87B	48.51B	32.75B	18.74A	13.10B	19.86A	67.04A
2018	高日产HDY	65.20bc	34.80ab	50.40c	32.10b	17.50b	13.60a	19.27cd	67.12a
	中日产MDY	63.86c	36.14a	52.61ab	31.87b	15.52c	14.06a	23.09a	62.85b
	低日产LDY	64.78bc	35.22ab	54.76a	30.62b	14.63c	14.89a	20.87bc	64.24b
	平均Mean	64.61B	35.39A	52.59A	31.53A	15.88B	14.18A	21.08B	64.74B
F值 F value	年份Year (Y)	10.92**	10.92**	46.85**	5.43*	55.41**	7.52**	3.87	9.93**
	日产量类型 Daily yield (D)	3.03	3.03	5.39**	3.71*	1.08	6.24**	13.19**	13.81**
	年份×日产量类型 Y×D	0.71	0.71	3.11*	0.72	12.78**	1.20	2.26	1.21