摘要
以烤烟品种PVH19为试验材料,研究23500株/hm2、20250株/hm2、18000株/hm2及16500株/hm24种不同种植密度对其生育期、农艺性状、质量、产量等方面的影响。结果表明:种植密度对烤烟生育期影响不大,在16500～23500株/hm2范围内,随着密度的增加,烤烟株高、有效叶数、单株叶面积系数、节距增加,茎围、叶片长宽、单叶重减小;总糖、还原糖含量增加,烟碱、总氮、蛋白质含量下降。当种植密度为16500株/hm2时,PVH19达到优质适产,上等烟比例及产值最高,分别为47.43%和38680.95元/hm2,且内在化学成分的协调性较好。
A field experiment was carried out to study the effects of four different planting density,23500 plants/hm 2,20250 plants/hm 2,18000 plants/hm 2 and 16500 plants/hm 2,on growth duration,agronomic characters,quality and yield.The results showed：16500-23500 plants/hm 2,with the increase of planting density,plant height of flue-cured tobacco,effective number of leaves,leaf area coefficient of one plant,inter node length increased,while stem diameter,length and width of leaf,weight per leaf decreased;Content of total sugar and reducing sugar increased,while content of nicotine,total nitrogen and protein decreased.Under this experimental range,the treatment of 16500 plants/hm 2 had the highest proportion of fair class leaf and production value,being 47.43% and 38680.95 yuan/hm 2 respectively,the chemical components were more harmonious.
出处
《中国农学通报》
CSCD
北大核心
2011年第9期261-264,共4页
Chinese Agricultural Science Bulletin
基金
中国烟草总公司重大科技专项"丽江金沙江区域特色优质烟叶研究与开发"
云南省烟草公司科技项目(09YN022)
关键词
烤烟
种植密度
产量
质量
flue-cured tobacco
planting density
yield
quality
