不同种类钾肥对香料烟产质量的影响

本文通过田间试验探讨了施用不同种类钾肥对香料烟产量的影响。试验结果表明:施用氯化钾和硫酸钾均能显著提高香料烟烟叶的产量;同时还能改善烟叶的外观质量和内在品质,主要表现在一级和二级烟叶比例的增大,烟叶含钾量、总糖量、施木克值及K/Cl比值的提高。值得注意的是,完全施用氯化钾处理的烟叶含氟量(0.93%)接近1.0%的临界值,这有可能降低烟叶的燃烧性。试验还表明:香料烟烟叶的含氟量与主要生育期土壤的含氯量呈极显著正相关,这对生产上确定氯化钾的适宜用量具有指导意义,有利于缓解香料烟产区硫酸钾供应紧缺的现状。 

Yield and Quality of Oriental Tobacco Affected by Various Sources of Potassium Fertilizers

A field experiment was carried out for investigating the effects of various sources of potassium fertilizers on yield and quality of oriental tobacco.The results indicated that both of MOP and SOP increased the yield of oriental tobacco significantly,as well as improved the exterior and interior quality of tobacco leaves in enhancing the contents of K and total sugar,smoke value (Sugar/Protein) and K/Cl ratios.It is noticeable that the Cl content (0.93%) of tobacco leaves from full MOP treatment approach the critical value (1.0%),which is lowering the combustibility of oriental tobacco.It also be found that the Cl contents of oriental tobacco leaves are significantly correlative to the Cl contents of soils (0~15cm) at the main growth stages;It is significative in determining the ratios and rates of MOP in place of SOP and mitigating the lack of SOP supply in the producing area of oriental tobacco.