巴东茶园土壤肥力及茶树营养状况分析

Analysis of Soil Fertility and Tea Tree Nutrition in Badong Distriction

对巴东县21个茶园土壤、茶树叶片和枝条进行调查取样,并对其土壤肥力状况和茶树营养状况进行分析评定。结果表明,巴东茶园土壤有机质含量适中,碱溶性有机质和土壤速效氮含量中等偏上,土壤速效磷和速效钾缺乏严重,低于临界值的比例达到80.95%。茶树叶片氮含量中等偏上,部分茶树叶片磷和钾含量偏低,缺乏比例分别为33.33%和42.86%。在养分含量相关性上,叶片、枝条和土壤三者相关性高,顺序为枝条与叶片>枝条与土壤>叶片与土壤,3种营养元素中以钾的相关性最高。

21 samples of tea garden soil and tea leaves and branches in Badong county were investigated and sampled. The soil fertility status and the nutritional status of tea plants were analyzed and evaluated. The result showed,soil fetility was serious in tea garden. The content of alkali-soluble organic matter and nitrogen were in middle and high level,soil available phosphorus and potassium were deficient seriously,deficient rate was 80.95% respectively. leaf nitrogen content of tea was more than middle,but phosphorus and potassium of tea were deficient,insufficient prevalence rates were 33.33% and 42.86%.Leaf was highly correlated with branch and soil in nutrients content,the order of correlation was branch and leaf leaf and soilbranch and soil. The correlation of potassium content was higher than nitrogen phosphorus.