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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (9): 261-264.

所属专题： 烟草种植与生产

• 农学 农业基础科学 • 上一篇    下一篇

烤烟新品种PVH19的种植密度产质量效应

陈茂建 胡小曼 杨焕文 李佛琳 段树苍 李成杰 韩天华   

  • 收稿日期:2010-11-17 修回日期:2011-01-20 出版日期:2011-04-25 发布日期:2011-04-25

Effects of Planting Density on Yield and Quality of Flue-cured Tobacco PVH19

  • Received:2010-11-17 Revised:2011-01-20 Online:2011-04-25 Published:2011-04-25

PDF (PC)

792

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/ hm2 4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、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。

关键词: 施肥, 施肥

Abstract:

A field experiment was carried out to study the effects of four different planting density, 23500 plants/hm2, 20250 plants/hm2, 18000 plants/hm2 and 16500 plants/hm2, on growth duration, agronomic characters, quality and yield. The results showed: 16500-23500 plants/hm2, 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/hm2 had the highest proportion of fair class leaf and production value, being 47.43% and 38680.95 yuan/hm2 respectively, the chemical components were more harmonious.