“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2 “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构成因素的影响

Table 2 Effects of nitrogen fertilizer in whole growth duration applied in the middle and late tillering stage on yield components of dry direct seed rice under “solo-stalk” cultivation mode

处理Treatment		基本苗 Basic seedlings (×10⁴ hm^-2)	有效穗数 Number of panicle (×10⁴ hm^-2)	每穗粒数 Spikelets per panicle	群体颖花量 Total spikelet number (×10⁸ hm^-2)	结实率 Seed setting rate (%)	千粒重 1000-grain weight (g)
氮肥水平 N level	追肥叶龄 Leaf age	基本苗 Basic seedlings (×10⁴ hm^-2)	有效穗数 Number of panicle (×10⁴ hm^-2)	每穗粒数 Spikelets per panicle	群体颖花量 Total spikelet number (×10⁸ hm^-2)	结实率 Seed setting rate (%)	千粒重 1000-grain weight (g)
N1	L6	381.8 a	409.8 e	85.6 cd	3.51 cd	95.66 a	27.2 a
	L7	381.9 a	428.6 d	88.4 bc	3.78 c	93.85 ab	27.4 a
	L8	382.0 a	455.3 b	93.7 a	4.29 ab	92.85 bc	27.4 a
	L9	382.4 a	436.5 cd	83.5 d	3.69 cd	91.66 c	27.2 a
	L10	382.8 a	446.2 bc	75.3 e	3.45 d	92.72 bc	27.1 a
N2	L6	382.1 a	429.3 d	88.0 bc	3.69 cd	95.46 a	27.3 a
	L7	381.5 a	450.2 b	90.4 ab	4.09 b	94.17 ab	27.1 a
	L8	383.2 a	474.2 a	94.5 a	4.54 a	92.59 bc	27.3 a
	L9	382.3 a	449.8 b	82.0 d	3.79 c	91.31 c	27.2 a
	L10	382.4 a	454.2 b	75.0 e	3.55 cd	92.21 bc	27.2 a
F-value
N		0.23^NS	147.00^**	1.25^NS	32.28^*	0.22^NS	0.05^NS
L		0.70^NS	28.14^**	59.11^**	32.17^**	25.96^**	0.15^NS
N×L		0.48^NS	0.79^NS	0.76^NS	0.55^NS	0.26^NS	0.13^NS
CK1		382.1	419.2	91.6	3.85	90.73	27.2
CK2		303.5	372.7	104.7	3.92	91.52	27.2