生育约束型直播水稻生育特征与稳产关键技术

张洪程,邢志鹏,翁文安,田晋钰,陶钰,程爽,胡群,胡雅杰,郭保卫,魏海燕

Growth Characteristics and Key Techniques for Stable Yield of Growth Constrained Direct Seeding Rice

ZHANG HongCheng,XING ZhiPeng,WENG WenAn,TIAN JinYu,TAO Yu,CHENG Shuang,HU Qun,HU YaJie,GUO BaoWei,WEI HaiYan

表8 基本苗密度对生育约束型直播水稻干物质积累特征的影响

Table 8 Effects of basic seedling density on dry matter accumulation traits of growth constrained direct seeding rice

方式 Method	基本苗 Basic seedling (×10⁴ hm^-2)	拔节期 Elongation stage (t·hm^-2)	抽穗期 Heading stage (t·hm^-2)	成熟期 Maturity (t·hm^-2)	拔节至抽穗期 Elongation to heading stage		抽穗至成熟期 Heading to maturity
方式 Method	基本苗 Basic seedling (×10⁴ hm^-2)	拔节期 Elongation stage (t·hm^-2)	抽穗期 Heading stage (t·hm^-2)	成熟期 Maturity (t·hm^-2)	积累量 Accumulation (t·hm^-2)	比例 Ratio (%)	积累量 Accumulation (t·hm^-2)	比例 Ratio (%)
水直播 Water direct- seeding	120	3.69b	9.98b	15.64b	6.28b	40.2a	5.66b	36.2b
	240	4.08ab	10.62a	17.06a	6.54a	38.4b	6.43a	37.7a
	360	4.28a	10.82a	17.09a	6.53a	38.2b	6.27a	36.7b
旱直播 Dry direct- seeding	120	3.57b	9.61b	15.09b	6.05b	40.1a	5.48b	36.3b
	240	4.01ab	10.56a	16.71a	6.55a	39.2ab	6.15a	36.8a
	360	4.18a	10.66a	16.66a	6.48a	38.9b	6.01a	36.0b