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采用盆栽试验 ,研究了不同施K水平下接种AM真菌摩西球囊霉 (Glomusmosseae)对烤烟烟叶生长和植株中K素累积和分布的影响 .结果表明 ,不同施K水平对AM真菌的接种效果有显著的影响 ,以每公斤土施K2 O 0 .75～1.12 5 g时接种效果最好 .接种AM真菌提高了烟草根系菌根侵染率 ,增加了烟叶总干重 ,其中对中位烟叶效果明显 ,上位和下位烟叶因施K量而异 .接种AM真菌显著增加了K在叶中的分配比例 ,减少了K在茎中的分配比例 ,提高了烟叶中K素的累积量 ,增加了成熟期烟叶K的含量 .表 5参 8
A pot experiment was conducted to study the effects of AM fungi Glomusmosseae on the growth and accumulation of K in the leaves of flue-cured tobacco under different application levels of K. The results showed that inoculation effects of AM fungi The effect of inoculation was the best when the K 2 O 0 .75 ~ 1.12 5 g per kilogram of soil was applied.The inoculation of AM fungi increased the mycorrhizal infection rate of tobacco root and increased the total dry weight of tobacco leaves, Obviously, the upper and lower tobacco leaves varied according to the amount of K. Inoculation of AM fungi significantly increased the proportion of K in the leaves, reduced the proportion of K in the stems, increased the accumulation of K in the leaves and increased the maturity Period of tobacco K content