野生蕨菜产地土壤微团聚体质量分数与养分因子关系研究  

Research on the Relation of Mass Fraction of Micro-aggregation and Nutrient Factor in Pteridium aquilinum’s Producing Area

作　　者：许广波[1] 梁运江[1] 罗广军[1] 石铁源[1] 傅伟杰[1] 

机构地区：[1]延边大学农学院,吉林龙井133400

出　　处：《北华大学学报（自然科学版）》2003年第3期247-251,共5页Journal of Beihua University（Natural Science）

基　　金：吉林省教委资助项目 (吉教合字 ( 99)第 87号 )

摘　　要：以野生蕨菜产地中d＜0.25 mm的土壤微团聚体质量分数为依变量,以有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾为自变量进行了通径分析,结果表明:对d＜0.25 mm土壤微团聚体质量分数有正效应的主要因子为速效磷,其次为速效氮和有机质;有负效应的主要因子为全磷,其次全钾.Taking micro aggregation d < 0.25 ?mm in Pteridium aquilinum's producing area as dependent variable, and taking organic matter, total N, total P, total K, available N, available P, available K as independent variable, were analysed in terms of path analysis. The results showed: available P is main factor of positive effect, secondly available N and organic matter on mass fraction of micro aggregation d < 0.25 ?mm; Total P is main factor of negative effect, secondly total K on mass fraction of micro aggregate d < 0.25 ?mm.

关 键 词：土壤 微团聚体 通径分析 蕨菜产地 

分 类 号：S154.1[农业科学—土壤学]