沼液在烟叶生产上的应用研究初报

在中式浓香特色烟叶生产中,为替代化学肥料和农药,在潍坊市的诸城、安丘和高密3个产烟县(市)进行了沼液在烟叶生产上的使用效果试验。初步结果表明,沼液能够促进烟苗生长,提高烟苗茎高、茎围和根重,同时可以改善烤烟株高、叶数和腰叶面积等农艺性状;沼液处理能较好地改善烟叶等级结构,提高烟叶产量、产值、均价和上等烟比例,平均分别提高了4.02%、8.59%、4.38%和8.15%;沼液对烟草病毒病、黑胫病和赤星病有较好的防治效果,病害发病率分别降低了59.96%、55.56%和19.05%,对烟蚜也有一定的防治效果,沼液处理后,烟蚜虫口数量明显下降。综合分析,沼液对促进烟草生长、防治烟草病虫害、提高烟草质量有积极作用,具有一定应用前景。

A Preliminary Study on Effects of Biogas Slurry on Tobacco Production

To search for substitutes of chemical fertilizers and chemical pesticides in the production of strong flavor type tobacco, biogas slurry was applied in Zhu Cheng. An Qiu and Gao Mi. The results showed that biogas slurry can promote the growth of tobacco seedlings, enhance the stem height, stem diameter and root weight. The biogas slurry also can improve the agronomic characters of tobacco. The yield, market value, average price and proportion of superior tobacco were increased by 4.02%, 8.59%, 4.38% and 8.15% respectively by biogas slurry application compared with the control. The appearance quality of tobacco however, was not changed. Biogas slurry showed good control effect on Myzus persicae as well as tobacco virus disease, black shank and brown spot, with the incidence rates of the 3 diseases were reduced by 59.96%, 55.56% and 19.05% respectively. In conclusion, biogas slurry can promote the growth of tobacco, control tobacco diseases and pests, and improve tobacco quality.