不同栽培密度和施氮量对西山糯干籽粒产量的影响  

Effect of Different Density and of Nitrogen on Yield of Xishannuo, a Glutinous Maize Variety

作　　者：刘世红[1] 吴盛黎[1] 戴保威[1] 

机构地区：[1]贵州大学农学院农学系,贵阳550025

出　　处：《贵州农业科学》2003年第5期23-26,共4页Guizhou Agricultural Sciences

基　　金：贵州省玉米育种"九五"攻关项目研究内容之一[黔科合计字(1996)023号]

摘　　要：对优质糯玉米品种西山糯进行了不同密度和施N量的田间试验,结果表明,西山糯在不同栽培密度、不同施N量条件下,不同处理的产量差异达极显著水平。最佳密度5000株/667m^2和最佳施N量30kg/667m^2时,产量达487kg/667m^2。进一步对与产量关系密切的经济系数、产量构成因素、叶面积指数、干物质动态变化作统计分析结果,产量高的处理,经济系数较高,产量构成因素合理,经济性状也优,叶面积指数较大,且动态变化较合理,干物质积累较多。表明栽培密度、施N量是影响西山糯产量的重要因素,二者的交互作用对产量也有一定的影响。The results from the field experiment of Xishannuo (a glutinous maize variety ) on two cultivating factors of different density and amount of nitrogen applied indicate that the yield reaches 7305 kg/ha under the optimum conditions of planting density 75000 clumps and 450kg of nitrogen amount applied per ha. The treatment reaching higher yield is of the higher economic coefficient, suitable yield component factors, and higher leaf area index on the basis of statistical analysis, which shows that the planting density and amount of nitrogen applied are key factors of affecting Xishannuo yield.

关 键 词：糯玉米 西山糯品种 栽培密度 施氮量 干籽粒产量 

分 类 号：S513[农业科学—作物学]