贵烟4号施氮量、密度和留叶数配套技术研究  

The study on technique of nitrogen rates,density and leaves of tobacco remained Guiyan 4

作　　者：刘仁祥[1] 黄宁 邓桂秀[1] 冯勇刚 丁伟 

机构地区：[1]贵州大学农学院,贵州贵阳550025 [2]贵阳市烟草分公司,贵州贵阳550001 [3]贵州省烟叶生产购销公司,贵州贵阳550001

出　　处：《山地农业生物学报》2006年第2期95-100,共6页Journal of Mountain Agriculture and Biology

基　　金：贵州省烟草公司重点资助项目(黔烟科2004-13)

摘　　要：以改善贵烟4号烟株经济性状为目标,采用三因素二次饱和D-最优设计,研究了贵烟4号配套施肥、密度、留叶技术,结果表明,施氮量、密度、留叶数变化对烟叶产量、均价、单位面积产值等经济性状的影响大,在施氮量、密度、留叶数取值范围内,施氮量对烟叶产量、产值的影响最大,对烟叶均价影响与密度、留叶数相差不大;在中等肥力地块上,当施氮量、密度、留叶数分别为6.5kg.667m-2、1 042株.667m-2和21片.株-1时,贵烟4号烟叶经济产量、均价、单位面积产值达到高值为164.99kg.667m-2、8.68元.kg-1、1 432.11元。从烟叶产量、均价、单位面积产值等经济性状看,当前生产上推广贵烟4号时,应将施氮量作为首要因素考虑。To improve the economic character of Guiyan 4, three-factorial quadratic saturating D-optimum design were applied to study the nitrogen rate, density and leaves remained technique of Guiyan 4. The results show that nitrogen rates,density and leaves remained have a great effect on tobacco yield leaves,average price and unit area output value. Nitrogen rate has the most important influence on tobacco leaves production and output value among nitrogen rates,density and leaves remained, but not much difference on average price as density and leaves remained. In the medium-fertile filed ,when the nitrogen rates,density and remaining leaves are 6. 5 kilograms per 667m^2 ,1 042 plants per 667m^2 ,and 21 leaves per plant,the economic production,average price and unit area output value are maximum at 164.99 kilograms per 667m^2 ,8. 68 yuan per kilogram and 1 432. 11 yuan. The result indicated that we should regard nitrogen rate as the main factor when growing Guiyan 4 in large areas according to tobacco leaves yield ,average price and unit area output value.

关 键 词：施氯量 密度 留叶数 贵烟4号 

分 类 号：S511[农业科学—作物学] S572