湖南邵阳主烟区土壤养分特征分析及施肥对策

为查明邵阳市主植烟区的土壤肥力状况，对该市3个主烟区的285个土壤样品进行分析，结果表明，全市植烟土壤pH值、速效锌和速效硼含量比较适宜；有机质、碱解氮、速效磷含量丰富；土壤交换性镁、速效钾和水溶性氯供应明显不足，大部分烟区处在缺乏与潜在性缺乏之间。不同植烟区土壤肥力特征有较大的差异。邵阳市烟区应重视土壤酸度的调节，适当控制氮肥和磷肥，补施镁肥，增施钾肥和氯肥。

Analysis of Soil Nutrient Characteristics in Main Tobacco-growing Areas in Shaoyang City of Hunan and Its Fertilization Countermeasures

In order to investigate the soil fertility situations in main tobacco-growing areas of Shaoyang City,285 soil samples from 3 main tobacco-growing areas in this city were analyzed.The results showed that pH value,available zinc and available boron content were appropriate in tobacco-growing soil of the whole city.The content of organic matter,available nitrogen and available phosphors were rich.But the supply of exchangeable magnesium,available potassium and water-soluble chlorine were obviously deficient an...