Content of Microelements in Tobacco Soil and Application of Micro-fertilizers in Guizhou

The content of microelements in major tobacco soils in Guizhou Province was generally investigated in 2000.The results showed that all the tobacco soil were very rich in Fe and Mn with an average of 37.16 mg/kg and 44.64 mg/kg respectively;rich in Mo,0.243mg/kg;moderate in Cu and Zn,1.812 mg/kg and 1.584 mg/kg respectively;poor in B,0.338mg/kg.The content of microelements differed obviously among different areas and soil types.Based on the obtained results,the practices of fertilization for flue-cured tobacco production in Guizhou Province were also put forward.