摘要
为了探讨水稻品种桂育9号在广西中西部地区的最佳种植密度和施氮量,采用2因素4水平裂区试验设计,测定相关农艺性状和叶面积指数及产量。结果表明,种植密度对最高苗数和结实率有极显著影响(P<0.01),对有效穗数和千粒重有显著彩响(P<0.05);施氮量对农艺性状及产量影响不显著,A3B2处理的农艺性状最佳,产量最高(7550kg/hm^2)。在广西中西部地区种植桂育9号时,种植密度以3.0×10^5蔸/hm^2、每苑2苗、施氮量165kg/hm^2为宜。
In order to explore the best planting density and nitrogen fertilizer application rate of rice variety Guiyu 9 in the central and western regions of Guangxi,a 2-factor and 4-level split plot design was used to determine the related agronomic traits,leaf area index and yield.The results showed that planting density had significant effects on the maximum seedling number and seed setting rate(P<0.01),effective panicle number,and 1000?grain weight(P<0.05).Nitrogen fertilizer application rate had no significant effects on agronomic traits and yield.A3B2 plot had the best agronomic traits,and the highest yield(7550kg/hm^2).When Guiyu 9 was planted in the central and western regions of Guangxi,the suitable planting pattern was a combination of planting density of 3.0x 10^5holes/hm^2,2 plants per hole and 165kg/hm^2 of nitrogen applicationrate.
作者
李虎
陈传华
刘广林
吴子帅
黄秋要
罗群昌
Li Hu;Chen Chuanhua;Liu Guanglin;Wu Zishuai;Huang Qiuyao;Luo Qunchang(Rice Research Institute,Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding/Guangxi Talent Highland of High Quality Rice Breeding Research,Nanning 530007,Guangxi,China;Baise Research Institute of Agricultural Sciences,Baise 533000,Guangxi,China)
出处
《作物杂志》
CAS
北大核心
2019年第6期99-103,共5页
Crops
基金
国家重点研发计划项目（2018YFD0200302）
国家现代农业产业技术体系广西创新团队项目（nycytxgxcxtd-01-03）
广西农业科学院科技发展基金（2015YT13）
中央引导地方科技发展专项（桂科ZY18057004）
关键词
水稻
种植密度
施氮量
桂育9号
农艺性状
产量
Rice
Planting density
Nitrogen fertilizer application rate
Guiyu 9
Agronomic traits
Yield
