烤烟不同打顶时期·留叶数对产质量的影响

目的]探明黔东南州黄平烟区不同长势烤烟最佳打顶时期和留叶数。方法]研究不同打顶时期和留叶数与烟叶产质量的关系。结果]不同打顶时期对烟叶的产质量影响最大。结论]在黄平县生态条件下,初花打顶＋留21叶效果最好,符合优质烟的田间长势长相,烟叶质量好,产量高,能获得较高的经济效益,而且随着打顶时期的延迟,烟叶产量和质量呈下降趋势,经济效益减少。

Topping Flue-cured Tobacco in Different Times and Number of Leaves Left on Yield and Quality

Objective] The research aimed to study the bloom periods and optimum topping number of leaves in Qiandongnan state flue-cured tobacco-growing areas.Method] The relationship between different periods to play and stay top of leaf number and leaf production, quality was studied.Result] Different topping stage on yield and quality of tobacco had the greatest impact.Conclusion] Under Huangping County ecological condition,the effect of flowers in early topping + 21 leaves to stay was the best. High-quality tobacco fields were growing in line with looks. Leaf quality was good, high yield was gotten and a higher economic efficiency was obtained. With the topping period of delay, tobacco yield and quality showed a downward trend, and the cost reduced.