贵州植烟土壤氯素特征与含氯钾肥施用探讨

2000年氯素普查结果，全省主要植烟土壤氯含量很低，平均含量4.60mg/kg；各烟区和各土类含氮量差异不明显，变幅分别为4.26mg/kg～51.13mg/kg和4.30mg/kg～4.88mg/kg，且氯含量动态变化不大。针对贵州土壤、烟叶的含氯水平及生态条件，分析了贵州烤烟生产合理施用氯化钾的可行性及建议。

CHLORIDE CONTENT IN TOBACCO PLANTING SOILS IN GUIZHOU AND THE POSSIBLITY OF CHLORIDE- CONTAINING POTASH APPLICATION

A survey of various tobacco-planting soils in the tobacco-producing areas in Guizhou carried out in 2000 reveals that soil Cl content in the province was low, with an average of 4.60 mg/kg. No significant difference was noticed between tobacco-producing areas and between soil types, ranging from 4.26 to 5.13 mg/kg and from 4.30 to 4.88 mg/kg, respectively. The dynamic variation of soil Cl content was non-conspicuous. Taking into consideration of the Cl levels in the soil and in tobacco plants and the ecological conditions in Guizhou, this paper analyzes the possibility of chloride-containing potash fertilization and offers some recommendations in this respect.