攀枝花市植烟土壤主要肥力特征分析

Analysis of Soil Fertility of Main District Planting Flue-cured Tobacco in Panzhihua City

[目的]测定分析攀枝花市植烟土壤主要肥力特征。[方法]对攀枝花市烟区213份耕作层土壤样品进行测试分析。[结果]攀枝花市绝大部分土壤pH适合烟草种植,有机质含量总体较缺乏;约50%的土壤样品全氮含量偏高,土壤碳氮比严重偏低;土壤碱解氮含量中等,速效磷含量总体较丰富,速效钾含量总体适中。不同区县之间,仁和区植烟土壤肥力水平相对较低。[结论]不同地块间土壤肥力差异很大,因此在施肥时要因地制宜,并特别重视有机肥的施用。

[Objective] The research aimed to determine and analyze the soil fertility of main district planting flue-cured tobacco in Panzhihua City.[Method] 213 soil samples collecting from the plough layer in the main district planting flue-cured tobacco in Panzhihua City were determined and analyzed.[Result] Most of soil pH in the main district planting flue-cured tobacco in Panzhihua City was suitable to planting flue-cured tobacco,and was shortage of organic matter.The total nitrogen content of about 50% soils samples was too high,the soil C/N ratio was too much low.The available nitrogen content was medium,the available phosphor content was abundance in total,the available potassium content was moderate in total.The soil fertility of Renhe District planting flue-cured tobacco was relatively low comparing to the others soil districts.[Conclusion] The soil fertility has big difference among different test field,so it is necessary to applying fertilizer according to different conditions,and especially attach importance to applying organic fertilizer.