播期和施氮量对杂交糯高粱生育期及产量的影响  

Effect of Sowing Time and Nitrogen Fertilizer Rate on Growth Period and Yield of Hybrid Glutinous Sorghum

作　　者：刘天朋[1] 赵甘霖[1] 倪先林[1] 胡炯凌[1] 陈国民[1] 丁国祥[1] 

机构地区：[1]四川省农业科学院水稻高粱研究所,四川泸州646000

出　　处：《湖北农业科学》2013年第15期3498-3500,共3页Hubei Agricultural Sciences

基　　金：国家高粱产业技术体系项目(CARS-06-01-05);四川省财政基因工程项目(2011JYGC11-31)

摘　　要：设置不同播期和施氮量,采取两因素随机区组试验设计,考察不同播期和施氮量对川南杂交糯高粱生育期及产量相关性状的影响。结果表明,川南杂交糯高粱在3月份随着播期的提前,抽穗期和成熟期均提前,但全生育期变长;当施氮量为70.0～122.5 kg/hm2时,全生育期随施氮量的增加而缩短。杂交糯高粱在3月13日播种、施氮量为105.0 kg/hm2时产量最高,成熟期较早。The effects of different sowing time and nitrogen （N） fertilizer rate on growth period and yield＇s related traits of hybrid waxy sorghum in South Sichuan were studied by setting different sowing time and N fertilizer rate and using random- ized block experiment design of two factors. Results showed that with earlier sowing time in March, the heading stage and mature period was both advanced, while the whole growth period was prolonged. When N application rate was 70.0-122.5 kg/hm2, the whole growth period decreased with the increase of N fertilizer rate. The yield of hybrid glutinous sorghum was the highest when seeds were sowed on March 13, and N fertilizer rate at 105.0kg/hm2; the ripe period was earlier.

关 键 词：杂交糯高粱 播期 施氮量 生育期 产量 

分 类 号：S514[农业科学—作物学]