摘要
【目的】对幼龄胶园间种香蕉、葛藤对胶园土壤肥力和土壤酶活性的影响进行研究，为科学管理胶园土壤、充分利用林下资源提供依据。【方法】选择2006年7～8月栽植的两个相邻橡胶林段，2008年4月分别在其胶行中间种香蕉、葛藤，同时设无间种作对照。2008年7月～2010年1月分7次采集胶园土壤样品进行土壤养分含量和土壤酶活性分析。【结果】幼龄胶园问种香蕉和葛藤均可提高胶园土壤有机质、全氮、速效磷和速效钾含量，但以间种香蕉的效应最明显；幼龄胶园问种可提高胶园土壤脲酶、磷酸酶活性，其活性大小依次为间种葛藤〉间种香蕉〉无间种；幼龄胶园间种可提高胶园土壤纤维素酶、蔗糖酶酶活性，其活性大小依次为间种香蕉〉间种葛藤〉无间种。幼龄胶园间种葛藤可提高胶园土壤过氧化氢酶和多酚氧化酶活性，但间种香蕉则降低这两种酶活性。【结论】幼龄胶园间种可提高土壤肥力，改善胶园微环境。有条件的地区，应大力发展幼龄胶园问种农作物或其他经济作物，以增加胶农非胶收入。
[Objective]The aim of the present research work was to study the effects of interplanting banana and pueraria with young rubber on the soil fertility and enzyme activity. [Method]Banana and pueraria were planted between two rows of rubber trees （planted during July-August 2006） in April 2008. The samples from rubber plantation soils were collected 7 times from July 2008 to January 2010 in order to analyze the nutrient contents and enzyme activity of soils. The soils, which have not been interplanted, were taken as the control. [Result]The organic matter content, total nitrogen, available phosphorus and potassium content in young rubber plantation soils increased after intereropping, especially with banana. Interplanting both the banana and puerafia with young rubber were found to raise soil urease and phosphatase activities. The highest urease and phosphatase activities were observed in soils after interplanting with banana, followed by the pueraria and control. Interplanting pueraria in young rubber plantation enhanced soil catalase and polyphenol oxidase activities. However, activities of these two enzymes decreased after interplanting with banana. [Conclusion]Intercropping young rubber with banana and pueraria improved the soil fertility and microenvironment. Practicing of interplanting rubber with other crops may be recommended not only to improve the soil nutrient status but also to enhance the economic benefits to the farmers.
出处
《南方农业学报》
CAS
CSCD
2011年第1期58-64,共7页
Journal of Southern Agriculture
基金
公益性农业行业科研专项项目(nyhyzx-07-33-016)
关键词
幼龄胶园
间种
土壤肥力
土壤酶活性
young rubber plantation
interplanting
soil fertility
soil enzyme activity
