钙镁磷肥施用量对烤烟‘K326’产质量的影响

摘要

以‘K326’为材料,探讨了烤烟产质量对钙镁磷肥不同施用量的响应.结果表明:随着钙镁磷肥施用量的增加,烤烟主要农艺性状指标趋好,均价提高;而产量和产值、上等烟和中上等烟叶比例均是先增加后减少,其中以施用量375 kg/hm2最高;烤后烟叶的淀粉、氯、总糖、烟碱含量随施用量的增加而减少,钾含量随施用量的增加而增加.综合考虑,以施用钙镁磷肥375 kg/hm2处理的效果最佳.%K326 was used as material to study the response of the yield and quality of K326 to the different application rate of calcium magnesium phosphate fertilizer.The results showed that the main agronomic traits of flue-cured tobacco were better and the average price was increased with the increasing rate of the fertilizer.The yield and out-put value were as the same situation.The proportion of upper and upper-middle tobacco leaves were increased before medium rate and then decreased at higher rate.The yield and out-put value,the proportion of upper and upper-middle tobacco leaves at rate 375 kg/hm2 of calcium magnesium phosphate fertilizer was the highest.The content of starch,chlorin,total sugar and nicotine were increased with the increased rate of calcium magnesium phosphate fertilizer.So did the potassium content.Overall consideration,the effect of treatment 375 kg/hm2 of calcium magnesium phosphate fertilizer was the best.