南方主要烟草种植区植烟土壤肥力特征及硫素状况

Fertility Characteristic and Sulfur Status of Tobacco-Growing Soil of Main Tobacco-Growing Areas in Southern China

分析了云南剑川、贵州镇远、湖南宁乡3个南方主要烟草种植区植烟土壤的肥力特征及硫素状况。结果表明,3个植烟区土壤有效磷及速效钾含量明显偏高,碱解氮和有机质含量为中高水平;土壤有效硫及全硫含量为中等和丰富水平。土壤有机质、碱解氮、有效磷与土壤全硫含量呈极显著正相关关系。

oil fertility characteristic and sulfur status of 3 main tobacco-growing areas Jianchuan of Yunnan,Zhenyuan of Guizhou,Ningxiang of Hunan in south China were analyzed.The results showed that the content of available phosphorus and rapidly available potassium in tobacoo-growing soil was obviously high,the content of alkaline hydrolysis nitrogen and organic matter was at medium high level.The content of soil available sulfur was at medium level,and total sulfurand was at abundant level.There were very significant positive correlations among the content of soil organic matter,alkaline hydrolysis nitrogen,available phosphorus and total sulfur in tobacco-growing soils.