“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4 “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茎蘖动态的影响

Table 4 Effects of nitrogen fertilizer in whole growth duration applied in the middle and late tillering stages on dynamics of tiller of dry direct seed rice under “solo-stalk” cultivation mode (×10⁴ hm^-2)

处理Treatment		六叶期 6-leaf stage	十叶期 10-leaf stage	拔节期 Jointing stage	抽穗期 Heading stage	成熟期 Maturity stage
氮肥水平 N level	追肥叶龄 Leaf age	六叶期 6-leaf stage	十叶期 10-leaf stage	拔节期 Jointing stage	抽穗期 Heading stage	成熟期 Maturity stage
N1	L6	426.7 a	766.7 a	574.7 d	428.0 e	409.8 e
	L7	423.4 a	566.0 b	689.4 ab	474.0 bc	428.6 d
	L8	420.0 a	541.4 b	626.0 cd	489.4 b	455.3 b
	L9	420.7 a	542.7 b	578.0 d	458.7 cd	436.5 cd
	L10	421.4 a	542.0 b	575.4 d	449.4 cde	446.2 bc
N2	L6	425.4 a	801.4 a	601.4 cd	434.7 de	429.3 d
	L7	423.4 a	568.0 b	724.0 a	490.7 b	450.2 b
	L8	420.0 a	542.0 b	646.7 bc	514.7 a	474.2 a
	L9	422.0 a	538.7 b	581.4 d	470.7 bc	449.8 b
	L10	426.7 a	544.0 b	583.4 d	456.0 cd	454.2 b
F-value
N		0.84^NS	1.28^NS	25.69^*	29.23^*	147.00^**
L		0.79^NS	84.57^**	61.33^**	22.29^**	28.14^**
N×L		0.25^NS	0.46^NS	0.86^NS	0.47^NS	0.79^NS
CK1		529.4	679.7	545.4	430.0	419.2
CK2		340.7	556.0	393.4	381.4	372.7