土壤调理剂对植烟土壤和烤烟质量的影响

[目的]应用"免深耕"土壤调理剂,为烟株根系生长创造良好的外部环境条件,以达到提高烟叶质量的目的。[方法]在田间设置4个处理,测定土壤的田间持水量、土壤容重,计算土壤总孔隙度,同时测定烟叶叶绿素的合成效率、经济性状、质量性状。[结果]施用"免深耕"土壤调理剂对改善烟田土壤物理性状有较明显的效果,团粒结构得到改善,透气性增强;对烟叶农艺性状有较大的影响,通过改善根际营养状况和发育环境,促进烟株的生长发育,以处理B(起垄前在田块表面喷施+垄体喷施)效果最佳;对提高烟叶的产量和质量均具有明显的促进作用,以处理B最佳,处理A(喷施一次调理剂在垄体)次之;对烟叶感官质量影响较大,各处理明显优于对照,其中以处理A最好,处理B次之。[结论]"免深耕"土壤调理剂的应用可以改善烟田土壤物理性状,促进烟株的生长发育,提高烟叶产质量。

Effects of Soil Conditioner on Tobacco Soil and Flue-cured Tobacco Quality

[Objective] In order to improve the quality of the tobacco,a favorable external environment conditions for the root growth of the tobacco were created using Mianshengeng soil conditioning agent.[Method] Four treatments were set in the field test.Soil field capacity,soil bulk density were measured and the total soil porosity was calculated.Tobacco leaf chlorophyll synthesis efficiency,economic traits,and quality traits were determined.[Result] Soil physical properties,granular structure and permeability in tobacco fields were improved obviously applying Mianshengeng soil conditioner.Tobacco agronomic traits were influenced significantly.By improving the nutritional status of the rhizosphere and development environment,the growth and the development of the tobacco plant were promoted.Treatment B(ridging plots surface before spraying + the ridge body spraying) had the best effect followed by treatment A(spraying a conditioning agent ridges).Chemical composition of the tobacco wasn't obvious.The impact on the sensory quality of the tobacco of each treatment was significantly better than that of the control,of which the best was treatment A,followed by treatment B.[Conclusion] Mianshengeng soil conditioner application can improve the tobacco field soil physical properties,promote the growth and development of the tobacco plant,and improve the quality of tobacco production.