饼肥用量对烤烟微量矿质元素吸收的影响

通过盆栽试验，研究了不同饼肥用量对烤烟品种K326中部叶微量矿质元素Fe、Cu、B、Mn和Zn吸收积累的影响。结果表明，烟叶中微量元素铁、硼、锰和锌的含量，在处理A和处理E之间、处理B和处理E之间、处理C和处理E之间都表现出显著差异；全部五种微量元素含量在处理D和处理E之间差异不显著。烟叶中所含的铁、硼、锰，都是在40d叶龄时达到最大值，锌在50d叶龄达到最大值，但与40d叶龄差异不大；铁和锌变化都是先增加后降低的趋势；硼和锰含量变化是呈现先增加再稍有降低，再增到最大，然后再降低的趋势。铜的变化与之相反，表现出先降低再增加，后又降低的趋势。

Effect of Cake Fertilizer on Some Microelements Absorption in Flue-cured Tobacco Leaves

Through pot-experiment, we discussed the effect of cake fertilizer on some microelements of iron, copper, boron, manganese and zinc absorption in flue-cured tobacco middle leaves of K326. The results showed that the contents of iron, boron, manganese and zinc were highly significant difference between treatments A and E, B and E, C and E. There was no significant difference among the contents of all the five microelements. The contents of iron, boron, and manganese had the highest value on the forty leaf age. Zinc had the highest content on fifty leaf age, but it had little difference with the content of forty leaf age. The contents of iron and zinc were increased in the beginning, and then became lower. The contents of boron and manganese were increased in the beginning, then became lower, and then came to the highest, turn to lower at last. The content of copper had opposite change with these microelements. It reduced at beginning, then increased, and reduced at last.