叶面喷施硫酸钾对烤烟品质的影响

Effect of Potassium Sulfate Foliar Application on Flue-cured Leaves Quality

通过田间试验,研究了喷施硫酸钾对烤烟的农艺性状、产量、产值和化学成分的影响。结果表明:喷施硫酸钾后对烟株株高、节距和中部叶开片有明显的影响。在有效叶数相近的情况下,喷施硫酸钾增加株高、节距,喷施钾肥烟叶产量、均价、产值和上等烟比例均有不同程度增加,钾和还原糖含量稍有增加,而总烟碱有所下降,但降幅小,烟草品质有一定改善。

Through the experiment on farmland, we carried out the research on the affection to the agronomy characters, output, value of output and chemistry composition of the tobacco by surface-spreading potassium sulphate. The consequence indicates that： the affections to the height of tobacco are obvious. Distance between nodes and the middle leaf spreading out were evident. under the condition of the similar effective leaf number, if we do Surface-spreading potassium sul- phate, it can improve the height, distance between nodes output, average value and value of output, more than that, the proportion of first-class tobacco can be improved more or less; In this way, the content of potassium and restorable carbohydrate can be increased slightly, while the total content of tobacco alkali was descended, but the range was very small. The quality of tobacco can be improved.