广西南丹烟区植烟土壤主要养分特征分析

2006～2009年对广西南丹县六寨、月里、芒场、中堡、巴定、罗富、里湖等7个主要产烟乡镇进行土壤检测分析，探讨南丹烟区植烟土壤的主要养分特征。结果表明，南丹烟区植烟土壤以偏酸性为主，部分土壤呈强酸性；土壤有机质含量较丰富，速效氮含量基本处于适宜范围，速效磷和速效钾缺乏比例较大；交换性钙含量较丰富，交换性镁含量不足；有效锌含量较丰富，有效硼含量严重不足；有效铁和有效锰含量偏高；有效氯含量基本处于适宜范围，但部分土壤有效氯含量偏低。因此，南丹烟区应注意植烟土壤酸碱度调节，采取“稳氮、增磷、提钾、适当补镁和硼”等施肥对策，以实现烤烟优质高效生产。

Analysis of soil nutrient status in tobacco planting areas of Nandan County, Guangxi

The present study was conducted to study the soil nutrient status in tobacco planting areas of some townships in Nandan County.The soil samples,collected from seven townships of Nandan County,viz.,Liuzhai,Yueli,Mangchang,Zhongbao,Bading,Luofu,Lihu,were analyzed during 2006-2009.The results indicated that most of soils in tobacco planting areas of Nandan County were acidic,and some were highly acidic in nature.The soil was found to be rich in organic matter content.The available nitrogen content was found in...