施氮量和栽培密度对Q优6号产量构成因素的影响  

Effects of Nitrogen Fertilizer and Planting Density on Q You No.6 Yield Components

作　　者：黄继魁 

机构地区：[1]国家现代农业产业技术体系广西创新团队(水稻),广西乐业533200 [2]广西乐业县良种示范繁殖农场,广西乐业533200

出　　处：《安徽农业科学》2014年第18期5766-5768,共3页Journal of Anhui Agricultural Sciences

基　　金：国家现代农业产业技术体系广西创新团队(水稻)专项(nycytxgxcxtd-01)

摘　　要：[目的]筛选适宜施氮量和栽培密度,为乐业中稻生态条件下Q优6号高产及增收节支提供理论依据。[方法]以超级稻Q优6号为研究材料,设2个施纯氮量150、225 kg(N)/hm2和4个栽培密度24万、30万、36万、42万蔸/hm2。[结果]Q优6号产量主要受有效穗数和每穗实粒数的影响,其千粒重对产量影响不明显。在施氮量为225 kg/hm2、栽培密度为36万蔸/hm2时,有利于Q优6号的增产。[结论]较高的施氮量和36万蔸/hm2左右栽培密度有利于Q优6号在乐业中稻区的稳产高产。[ Objective ] Filtering optimum amount of nitrogen and planting density, it will provide a theoretical basis for high yield and increase revenue in the Middle Rice Q you No. 6 in ecological conditions of Leye. [ Method] Super rice Q you No. 6 was selected as research material in two nitrogen application amount 150,225 kg（ N）/hm^2 and four planting densities 240 000, 300 000, 360 000, 420 000 stump/ hm^2. [ Result] Q you No. 6 production is mainly affected by panicles and grains per panicle, the grain weight had no obvious effect on yield. In nitrogen amount 225 kg/hm^2, planting density is 360 000 stump/hm^2, Q you No. 6 have the excellent yield. [ Conclusion] Under the higher amount of nitrogen and planting density about 360 000 stump / hm^2, Q you No. 6 will get stable -yield and high-yield in Leye.

关 键 词：氮肥 栽培密度 籼稻 产量 乐业 

分 类 号：S511[农业科学—作物学]