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针对近年四川烟区烟叶钾含量逐年下降的情况,于2013年在四川凉山会理县试验研究了不同施钾量与施钾方法对烤烟品质的影响。结果表明:施用300 kg/hm2的钾处理的烟叶化学成分适宜,钾含量较高;继续增大钾肥施用量,烟叶的钾含量提高不明显,化学成分协调性反而降低;钾肥采用1/3作底肥、1/3于移栽后25 d第一次追施、1/3于移栽后50 d第二次追施的方法,烟叶钾含量相对较高,品质较好;不同处理的烤烟产量没有明显差异。
In order to reduce the potassium content of tobacco leaves in Sichuan tobacco growing area in recent years, the effect of different K application rates and K application methods on flue-cured tobacco quality was studied in Huili County, Liangshan, Sichuan Province in 2013. The results showed that the chemical composition of the leaves treated with 300 kg / hm2 of potassium was suitable and the content of potassium was high. With the increasing of the amount of potassium fertilizer applied, the potassium content of tobacco leaves did not increase obviously and the coordination of chemical components decreased. Base fertilizer, 1/3 first topdressing 25 days after transplanting, 1/3 second topdressing 50 days after transplanting, the content of potassium in leaves was relatively high and the quality was good. The yield of different treatments of flue-cured tobacco No significant difference.