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通过田间试验 ,研究了揭膜中耕、栽植方式和烯效唑喷施等措施对香料烟生长和产、质量的影响。结果表明 ,揭膜中耕和烯效唑喷施可促进茎的横向生长 ,降低株高 ,减小叶面积 ;栽植方式对香料烟生物学性状影响不大。这些措施可增加烟株干物质量、叶绿素含量、根系活力和根冠比 ;烟叶总糖含量降低 ,烟碱和钾含量提高 ,内在化学成分得到改善 ,糖碱比趋于协调。与对照相比 ,揭膜中耕后 ,烟叶产值提高 16 .9% ,烯效唑喷施浓度以 15 mg/ kg效果最好 ,其产值提高 7.6 %。
Field experiments were conducted to study the effects of tillage, planting methods and spraying of uniconazole on the growth, yield and quality of Oriental tobacco. The results showed that cultivating with uncovering film and spraying with uniconazole promoted transverse growth of the stem, decreased plant height and decreased leaf area. There was little effect on the biological characteristics of the oriental tobacco. These measures can increase the plant dry matter content, chlorophyll content, root activity and root / shoot ratio of tobacco plants; total sugar content of tobacco leaves decreased, nicotine and potassium content increased, the internal chemical composition was improved, the ratio of sugar to alkalinity tends to be coordinated. Compared with the control, the yield of tobacco increased by 16.9% after uncovering and filming. The spraying effect of uniconazole at 15 mg / kg was the best, and its output increased by 7.6%.