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福建省铁观音茶园土壤镁素状况研究
引用本文:侯玲利,陈磊,郭雅玲,葛洪力,王果,连伟.福建省铁观音茶园土壤镁素状况研究[J].植物营养与肥料学报,2009,15(1):133-138.
作者姓名:侯玲利  陈磊  郭雅玲  葛洪力  王果  连伟
作者单位:1.福建农林大学资源与环境学院 福建福州,350002;
基金项目:中国地质调查局资助项目,福建省地质调查研究院项目 
摘    要:调查了福建省安溪县、华安县和永春县等铁观音茶主产区的150个茶园表土和相应的茶叶镁素含量状况,探讨了铁观音茶园土壤镁素供应能力及其与土壤条件之间的关系。结果表明,供试铁观音茶园土壤全镁含量平均值为1.77 g/kg;其中以变质岩类发育的土壤全镁最高,而花岗岩类发育的土壤全镁最低。土壤全镁含量与有机质含量和0.02~0.002 mm粉砂粒含量呈显著正相关,与2~0.02 mm颗粒含量呈极显著负相关。土壤交换性镁含量平均值仅为9.63 mg/kg,土壤普遍缺镁。交换性镁含与pH、有机质含量和土壤全镁呈之间显著正相关,土壤镁有效度与0.002 mm 颗粒含量之间呈显著负相关。茶叶镁含量平均值为1.78 g/kg,与交换性镁含量呈极显著正相关。

关 键 词:铁观音        土壤    
收稿时间:2008-1-16

Study on soil magnesium in the Tieguanyin tea plantations of Fujian Province
HOU Ling-li,CHEN Lei,GUO Ya-ling,GE Hong-li,WANG Guo,LIAN Wei.Study on soil magnesium in the Tieguanyin tea plantations of Fujian Province[J].Plant Nutrition and Fertilizer Science,2009,15(1):133-138.
Authors:HOU Ling-li  CHEN Lei  GUO Ya-ling  GE Hong-li  WANG Guo  LIAN Wei
Affiliation:1.College of Resources and Environment,Fujian Agriculture and Forestry University,Fuzhou 350002,China;
Abstract:The contents and availability of Mg in surface soils and Mg contents of the corresponding tea leaves of 150 Tieguanying tea plantations in Anxi, Hua’an and Yongchun Counties of Fujian Province were investigated. The supplying capacity of soil Mg and its relationships with soil conditions were discussed. The mean total Mg content of the soil samples is 1.77 g/kg. The total Mg contents of the soils derived from metamorphic rocks are higher than those derived from granites. There are positive correlations between the total soil Mg and the contents of organic matter and 0.02-0.002 mm soil particles, respectively. The correlation between total soil Mg and content of 2-0.02 mm particle is negative. The average exchangeable Mg is only 9.63 mg/kg which indicates a widespread Mg deficiency in the tea plantation soils. The exchangeable Mg is significantly correlated with soil pH, organic matter content and total soil Mg. The availability degree of Mg (the ratio of exchangeable to total Mg) is significantly and negatively correlated with <0.002 mm particles. The mean concentration of Mg in tea leaves is 1.78 g/kg, and there is a significant and positive correlation between Mg content in tea leaves and soil exchangeable Mg.
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