发酵饼肥对烤烟各器官磷积累和分配的影响

The Effect of Fermented Cake Fertilizer on the Accumulation and Distribution of Phosphorus in Flue-Cured Tobacco

采用田间小区试验设计,研究了定向发酵饼肥不同施用比例对烤烟磷积累和分配的影响。结果表明,根系磷积累表现为先升高后降低的变化,50%饼肥处理与对照之间无显著差异;茎磷积累量3个处理之间无显著差异;烟叶内磷积累呈现出一直升高的变化,下部叶和上部叶3个处理之间无显著差异,中部叶50%饼肥处理与对照之间无显著差异;不同饼肥施用比例不会改变磷在不同部位烟叶中积累的基本规律。综合分析认为,定向发酵饼肥施用比例在50%情况下不会显著改变磷积累和分配的规律,为较好的施用比例。

In order to provide a theoretical basis for rational applying fermented cake fertilizer,the effect of different application proportions（pure inorganic fertilizer,50% cake fertilizer,100% cake fertilizer） of fermented cake fertilizer on the accumulation and distribution of phosphorus in flue-cured tobacco was studied.The accumulation of phosphorus in roots increased first and then decreased,and there were no difference between the treatment of 50% fermented cake fertilizer application and the pure inorganic fertilizer treatment.There was no difference in phosphorus accumulation of stem among the three treatments.The accumulation of phosphorus in flue-cured tobacco leaf showed a continuous increasing trend.No significant differences in accumulation of lower and upper leaves among the three treatments were found,also there was no difference between the 50% cake fertilizer application treatment and pure inorganic treatment in middle leaves.Cake fertilizer with different application proportions would not change the ratio of phosphorus in different parts of the tobacco leaves.These results showed that applying 50% of fermented soybean cake was better and could not significantly change the laws of accumulation and distribution of phosphorus in flue-cured tobacco.