Variance analysis on contents of potassium,chlorine and sulfur of flue-cured tobacco leaves in Guangdong tobacco-growing areas

The contents and variation characteristics of potassium,chlorine and sulfur of flue-cured tobacco leaves collected in Guangdong tobacco-growing areas from different production areas,different tobacco gradings,different tobacco cultivars and different years were analyzed.The results indicated that the contents of potassium,sulfur and the ratio of potassium to chlorine were medium with the mean of(2.29±0.33) %,(0.46±0.10) % and(11.33±5.68),respectively,and chlorine content was lower with the mean of(0.26±0.13) %.The variation coefficient(51.16 %) of chlorine content was the highest,the variation coefficient(14.26 %) of potassium content was the lowest.Extremely significant differences of the contents of potassium,chlorine and the ratio of potassium to chlorine of flue-cured tobacco were found among the different production areas.Extremely significant differences of potassium content of flue-cured tobacco were found among the different gradings.The differences of content of potassium,chlorine,sulfur and the ratio of potassium to chlorine of flue-cured tobacco leaves didn't reach to the significant level among different cultivars and different years.