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为提高上部烟叶可用性,采用在烤烟打顶后叶面喷施含钾肥料,研究其对烟叶物理特性、化学成分及评吸质量的影响。结果表明:在烤烟打顶后喷施含钾肥料可提高上部烟叶钾含量2.63%~19.30%;喷施硫酸钾+氨基酸+壳寡糖+胺鲜酯处理的烟叶物理特性指数、化学成分可用性指数和评吸总分可分别提高5.92%、31.15%、5.30%。因此,烤烟打顶后叶面喷施含钾肥料可提高上部烟叶钾含量和烟叶可用性。
In order to improve the availability of the upper leaves, the effect of applying potassium fertilizer on the foliar foliage of flue-cured tobacco was studied to study its physical properties, chemical composition and smoking quality. The results showed that the potassium content in top leaves increased 2.63% -19.30% after spraying potassium fertilizer on top of flue-cured tobacco leaves. The physical properties index, chemical composition usability index And stigma total score can be increased by 5.92%, 31.15%, 5.30% respectively. Therefore, the flue-cured tobacco leaf top spray potassium fertilizer can improve the upper leaf potassium content and leaf availability.