控释氮肥运筹对钵苗摆栽籼粳杂交稻甬优1540产量及氮肥利用的影响

柯健, 陈婷婷, 徐浩聪, 朱铁忠, 吴汉, 何海兵, 尤翠翠, 朱德泉, 武立权

Effects of different application methods of controlled-release nitrogen fertilizer on grain yield and nitrogen utilization of indica-japonica hybrid rice in pot-seedling mechanically transplanted

KE Jian, CHEN Ting-Ting, XU Hao-Cong, ZHU Tie-Zhong, WU Han, HE Hai-Bing, YOU Cui-Cui, ZHU De-Quan, WU Li-Quan

表5 控释氮肥运筹对钵苗摆栽籼粳杂交稻氮素吸收和利用的影响(2016-2017)

Table 5 Effects of different application methods of CRNF on N uptake and N apparent recovery efficiency of indica-japonica hybrid rice in pot-seedling mechanically transplanted in 2016 and 2017

年份 Year	处理 Treatment	氮积累量 N uptake (kg hm^-2)			氮素利用效率 N apparent recovery efficiency (%)
年份 Year	处理 Treatment	穗分化期 PI	抽穗期 HS	成熟期 MS	氮素利用效率 N apparent recovery efficiency (%)
2016	0N	75.4 c	140.4 c	195.1 c	—
	SU	170.4 b	265.5 a	314.0 a	42.5 a
	BC	174.5 b	238.4 b	278.2 b	29.7 b
	BC+TU	189.4 a	232.6 b	270.4 b	26.9 b
	BC+PU	169.0 b	267.0 a	318.7 a	44.1 a
2017	0N	96.2 c	130.0 c	171.0 c	—
	SU	195.7 b	245.2 a	284.7 a	40.6 a
	BC	199.6 b	226.3 b	247.7 b	27.4 b
	BC+TU	220.5 a	224.4 b	241.3 b	25.1 b
	BC+PU	194.6 b	255.2 a	293.5 a	43.8 a
F-value	年份Year (Y)	254.5^**	24.1^**	151.6^**	2.9^ns
	处理Treatment (T)	693.8^**	315.7^**	381.9^**	97.0^**
	Y×T	1.1^ns	0.6^ns	0.3^ns	0.2^ns