2012•Hunan Agricultural SciencesRequires access
Effects of Different Application Methods of Potassium on Yield and Quality of Flue-cured Tobacco
Tian Feng
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Abstract
Based on the same total fertilizer rate of potassium(300 kg/hm2),effects of different application methods of potassium on yield and quality of flue-cured tobacco were studied using field experiments.The results showed that there are no obvious effects of six different application methods of potassium on growth period of tobacco.In terms of economic characters,there are significant differences between each treatment.Among all of the treatments,T5(25% as base fertilizer and 75% as top dressing are applied at 25 d and 35 d after transplanted with the same fertilizer rate,respectively) had the best performances in yield,output value and ratio of superior tobacco to medium tobacco,and the tobacco with T5 has strong resistance against brown spot disease.