“独秆”栽培模式下全程氮肥在分蘖中后期施用对旱直播水稻产量和品质的影响

赵杰, 李绍平, 程爽, 田晋钰, 邢志鹏, 陶钰, 周磊, 刘秋员, 胡雅杰, 郭保卫, 高辉, 魏海燕, 张洪程

Effects of nitrogen fertilizer in whole growth duration applied in the middle and late tillering stage on yield and quality of dry direct seeding rice under “solo-stalk” cultivation mode

ZHAO Jie, LI Shao-Ping, CHENG Shuang, TIAN Jin-Yu, XING Zhi-Peng, TAO Yu, ZHOU Lei, LIU Qiu-Yuan, HU Ya-Jie, GUO Bao-Wei, GAO Hui, WEI Hai-Yan, ZHANG Hong-Cheng

表3 “独秆”栽培模式下全程氮肥在分蘖中后期施用对旱直播水稻穗型结构的影响

Table 3 Effects of nitrogen fertilizer in whole growth duration applied in the middle and late tillering stages on panicle structure of dry direct seed rice under “solo-stalk” cultural code

处理Treatment		整穗Panicle						一次枝梗Primary branches				二次枝梗Secondary branches
氮肥水平 N level	追肥叶龄 Leaf age	穗长 PL (cm)	着粒密度 GD (grain cm^-1)	单穗重 GWPP (g)	一二次枝梗比 RN	一二次枝梗总粒数比 RTG	总粒数 TG	枝梗数 NB	单枝梗着粒数 GPB	总粒数 TG	结实率 SSR (%)	枝梗数 NB	单枝梗着粒数 GPB	总粒数 TG	结实率 SSR (%)
N1	L6	13.8 ab	6.21 de	2.17 c	0.75 a	1.53 a	85.6 c	9.0 a	5.72 a	51.7 a	97.7 b	12.1 de	2.81 b	33.9 d	88.0 b
	L7	13.7 ab	6.44 bc	2.20 bc	0.64 cd	1.34 bc	88.4 b	8.5 b	5.94 a	50.5 a	97.4 b	13.3 bc	2.85 b	37.9 bc	87.0 c
	L8	13.6 b	6.87 a	2.36 a	0.56 f	1.16 de	93.7 a	8.4 b	6.00 a	50.2 a	96.6 c	14.9 a	2.91 ab	43.5 a	85.9 d
	L9	13.7 ab	6.09 e	2.11 d	0.61 e	1.28 cde	83.7 cd	7.8 c	5.99 a	46.9 b	96.6 c	13.0 c	2.84 b	36.8 bcd	87.7 b
	L10	13.9 ab	5.39 g	1.91 e	0.74 ab	1.55 a	75.2 e	7.7 c	5.96 a	45.7 bc	97.0 c	10.4 g	2.84 b	29.5 e	88.2 b
N2	L6	14.0 a	6.29 cd	2.20 bc	0.73 ab	1.44 abc	88.1 b	9.1 a	5.74 a	52.0 a	98.3 a	12.4 d	2.92 ab	36.2 cd	88.2 b
	L7	13.9 ab	6.49 b	2.24 b	0.63 de	1.28 cde	90.0 b	8.4 b	5.87 a	50.6 a	97.6 b	13.4 b	2.94 ab	39.5 b	86.4 cd
	L8	13.9 ab	6.86 a	2.38 a	0.57 f	1.11 e	95.1 a	8.3 b	6.02 a	50.1 a	97.5 b	14.6 a	3.09 a	45.1 a	84.9 e
	L9	13.9 ab	5.92 f	2.07 d	0.66 c	1.32 bcd	82.2 d	7.8 c	5.99 a	46.6 bc	97.6 b	11.8 e	3.01 ab	35.6 cd	84.6 e
	L10	13.9 ab	5.40 g	1.93 e	0.71 b	1.45 ab	74.8 e	7.7 c	5.73 a	44.3 c	97.8 b	10.8 f	2.82 b	30.6 e	89.2 a
F-value
N		9.9^NS	1.27^NS	9.15^NS	0.55^NS	2.59^NS	5.14^NS	0.13^NS	0.25^NS	0.27^NS	80.18^*	4.07^NS	8.07^NS	3.14^NS	171.26^**
L		0.88^NS	147.44^**	183.93^**	109.43^**	29.80^**	169.64^**	57.35^**	5.97^**	28.35^**	33.59^**	339.47^**	3.77^*	105.76^**	73.40^**
N×L		0.96^NS	1.2^NS	1.41^NS	4.99^**	0.96^NS	2.2^NS	0.14^NS	1.32^NS	0.40^NS	6.44^**	14.76^**	1.37^NS	1.71^NS	22.74^**
CK1		13.9	6.60	2.22	0.67	1.42	91.7	9.0	5.99	53.8	94.05	13.4	2.83	37.9	85.04
CK2		14.2	7.37	2.48	0.63	1.31	104.7	9.9	6.00	59.3	95.28	15.7	2.90	45.4	86.51