“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5 “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加工品质和外观品质的影响

Table 5 Effects of nitrogen fertilizer in whole growth duration applied in the middle and late tillering stages on processing and appearance quality of dry direct seed rice under “solo-stalk” cultivation mode

处理Treatment		加工品质Processing quality			外观品质Appearance quality
氮肥水平 N level	追肥叶龄 Leaf age	糙米率 BRR (%)	精米率 MRR (%)	整精米率 HMR (%)	长宽比 LWR	透明度 TD	垩白大小 CS (%)	垩白粒率 CGR (%)	垩白度 CD (%)
N1	L6	84.67 a	66.18 a	62.19 a	1.65 a	3.0 a	56.9 a	9.3 a	5.3 f
	L7	84.76 a	66.36 a	62.66 a	1.66 a	3.0 a	60.5 a	9.2 a	5.5 ef
	L8	84.86 a	66.54 a	63.15 a	1.66 a	3.0 a	59.0 a	11.1 a	6.4 cde
	L9	84.96 a	66.68 a	63.89 a	1.66 a	3.0 a	61.6 a	11.7 a	7.2 abc
	L10	85.30 a	67.15 a	64.29 a	1.67 a	3.0 a	67.8 a	11.4 a	7.8 ab
N2	L6	84.66 a	66.38 a	62.40 a	1.66 a	3.0 a	61.2 a	9.6 a	5.5 ef
	L7	84.76 a	66.97 a	63.01 a	1.66 a	3.0 a	62.1 a	9.6 a	5.9 def
	L8	85.13 a	67.11 a	63.74 a	1.66 a	3.0 a	60.2 a	11.6 a	7.0 bcd
	L9	85.20 a	67.52 a	64.01 a	1.66 a	3.0 a	63.9 a	12.1 a	7.7 ab
	L10	85.30 a	68.04 a	64.64 a	1.67 a	3.0 a	70.3 a	11.7 a	8.2 a
F-value
N		1.13^NS	0.59^NS	0.29^NS	0.07^NS	—	0.60^NS	0.42^NS	8.41^NS
L		1.66^NS	1.03^NS	3.68^NS	1.14^NS	—	2.94^NS	3.61^*	22.50^**
N×L		0.14^NS	0.08^NS	0.04^NS	0.05^NS	—	0.06^NS	0.01^NS	0.05^NS
CK1		84.28	66.34	62.35	1.67	3.0	71.5	10.5	7.5
CK2		84.88	66.72	62.72	1.67	3.0	65.2	11.1	7.2