土壤改良剂对烤烟产质量和土壤理化性状的影响

摘要

通过田间试验，研究了施用不同土壤改良剂对烤烟农艺性状、经济性状、产量、质量及土壤理化性状的影响。结果表明：与不施用土壤改良剂相比，施用土壤改良剂能增加烤烟的株高、叶长和叶宽；增加烤烟的产量和产值，分别增加54．00～315．00 kg／hm2、2703．00～6759．15元／hm2；增加上中等烟比例和均价；显著增加烟叶中总糖、钾和还原糖含量；能有效降低土壤pH值和土壤容重；以施用225 kg／hm2腐殖酸型土壤改良剂的效果最好。%The effects of applying different soil conditioners on the agronomic characters , economic traits, yield, and quality of flue-cured tobacco as well as the physicochemical properties of soil were studied through field tests .The results showed that: in comparison with the control ( not applying soil conditioner ) , applying soil conditioner could increase the plant height , leaf length and leaf width of flue-cured tobacco, could increase the yield and production value of flue -cured tobacco by 54.00~315.00 kg/hm2, 2703.00~6759.15 yuan/hm2, respectively, could enhance the proportion of superior and medium tobacco leaves , and aver-age price, could significantly increase the contents of total sugar , potassium and reducing sugar in tobacco leaf , and could effectively reduce soil pH-value and soil bulk density .Among the applications of different soil conditioners , the application of 225 kg/hm2 humic-acid-type soil conditioner acquired the best effects .