Effects of Different Potassium Fertilizers on Main Chemical Components of Flue-cured Tobacco
Zhang Mingqian
Fan Jianli
Guo Chuanbin
Abstract：With the tobacco (Nicotiana tabacum L.) cultivar Yunyan 87 as material, the effects of dif-ferent varieties of potash fertilizer on the main chemical components of flue -cured tobacco were studied by field experiments .The results showed that under the potassium citrate treatment the total nitrogen and protein content had the most suitable value in each period of fresh tobacco , and the nitrogen metabolism was the most coordinating in tobacco plants;the content of reducing sugar and organic potassium of fresh tobacco were also improved .Among the chemical compositions and their ratio in flue -cured leaves , the protein content was the highest under the KNO 3 treatment .The potassium content , chloride ion and sulfate content were the highest under the K2 SO4 treatment, but the organic potassium content was the lowest .Under the potassium citrate treat-ment, the chloride ion and protein content was the lowest , while the content of organic potassium , reducing sug-ar and total sugar , and the ratio of K 2 O/Cl were the highest , so the quality of tobacco was the best .Overall , the quality of fresh leaves and flue -cured tobacco were both the best under the potassium citrate treatment .
Keywords：TobaccoPotassium fertilizerGrowth and developmentChemical composition
Publication Date：2015-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 68-71 )