毛鸡骨草GAP基地土壤肥力综合评价与供肥能力研究  

Integrated Evaluation on Soil Fertility and Nutrient Supply in GAP Cultivation Base of Abrus mollis Hance

作　　者：陈乾平[1] 董青松[1] 白隆华[1] 颜钟亚 陈章源 欧彪 

机构地区：[1]广西药用植物园,广西南宁530023 [2]广西玉林制药有限责任公司,广西玉林537001

出　　处：《安徽农业科学》2008年第17期7326-7327,7334,共3页Journal of Anhui Agricultural Sciences

基　　金：国家科技部西部开发科技行动项目"广西民族(壮)药材筛选评价及标准化研究与示范"子课题"鸡骨草规范化种植研究与示范"(2002BA901A14);广西科学研究与技术开发计划项目"广西民族(壮)药材筛选评价及标准化研究与示范-鸡骨草规范化种植研究与示范"(桂科攻0322023-2)

摘　　要：[目的]了解毛鸡骨草GAP基地土壤肥力现状,以及土壤中氮、磷、钾3要素的自然供给能力。[方法]运用改进的内梅罗(Nemoro)综合指数法对基地土壤肥力进行综合评价,并通过施肥试验研究了基地土壤中氮、磷、钾3要素的自然供给能力。[结果]土壤综合肥力系数为1.21,毛鸡骨草产量对土壤的依存率为40.90%。[结论]基地土壤综合肥力属"一般"等级,土壤供应氮、磷、钾的能力分别处于"低"、"高"、"中"等级,较低的土壤含氮量是该基地的主要养分限制因子。[Objective]The aim of this paper was to investigate the status of soil fertility and the ability of soil nutrient supply. [Method] Soll fertility was diagnosed and evaluated with modified Nemoro lndex, The soil N, P and K supplying capacity in GAP cultivation base of A brus moUis Hance was studied by fertilization experiment. [Result] The result indicated that the comprehensive coefficient of the soil fertility was 1.21. The relying ratio ofAbrus mollis Hance yield on soil was 40.90%. [Conclusion]The soil fertility in GAP cultivation base ofAbrus mollis Hance was in the category of ＂general＂. The soil N, P and K supplying capacity fell in the categories of ＂ low＂, ＂high＂ and ＂medium＂ , respectively. Low soil nitrogen content was the major nutrient limiting factor in this base.

关 键 词：土壤肥力综合评价 供氮磷钾能力 毛鸡骨草 

分 类 号：S158.2[农业科学—土壤学]