2009年在江西紫色土烟区点采集土壤样与烟叶样进行检测,分析不同酸碱度紫色土有效硼含量特征及对烤烟硼元素分布规律的影响.结果表明:江西紫色土有效硼含量较高,为2.04 mg/kg;不同酸碱度紫色土有效硼含量分布为碱性紫色土＞中性紫色土＞酸性紫色土;紫色土烤烟含硼量较高,平均含量为48.5 mg/kg,不同酸碱度紫色土烟叶含硼量分布为碱性紫色土烟叶＞中性紫色土烟叶＞酸性紫色土烟叶;不同酸碱度紫色土烤烟其不同叶位的烟叶含硼量分布为酸性与中性紫色土烤烟上部叶硼含量高于中、下部烟叶,但碱性紫色土烤烟中部叶硼含量低于上、下部叶.%In order to understand the contents of available boron of in different pH of purple soils in Jiangxi province and their effects on nutrient boron distribution laws of flue-cured tobacco, the soil and tobacco samples were collected in purple soil and were then determined in 2009. The results showed that in Jiangxi's purple soils, the content of available boron was abundant by 2. 04 mg/kg, the distribution of available boron content was alkaline purple soil > neutral purple soil > acid purple soil; The concentration of boron in leaf was high by 48. 5 mg/kg, the concentration of boron in tobacco leaf was alkaline purple soil leaf > neutral purple soil leaf > acid purple soil leaf. The concentration of boron in the upper leaf was higher than those in the lower and middle leaves in acid and neutral purple soils, but in the alkaline purple soil the concentration of boron in the middle leaf was lower than the upper and lower leaves.
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