浙江省杭州市蔬菜地土壤肥力状况调查  

Status of Soil Fertility in Vegetable Fields in Hangzhou City of Zhejiang Province

作　　者：章林英 李丹[1] 孙吉林[1] 王京文[1] 

机构地区：[1]杭州市植保土肥总站,浙江杭州310020

出　　处：《农业灾害研究》2013年第2期51-54,共4页Journal of Agricultural Catastrophology

摘　　要：从杭州市9个县(市、区)采集50个代表性蔬菜地的土壤样品,对土壤pH、有机质、有效磷、速效钾和碱解氮的状况进行分析。结果表明,杭州市蔬菜地土壤pH主要分布在4.5～6.5,酸性(pH<5.5)土壤比例高达30%;有机质以中高量为主,含量>30g/kg的蔬菜地土壤样品占总样品数的60%;有效磷达很高水平,均>20mg/kg,平均含量高达261.5mg/kg;速效钾以中、上水平为主,含量在100～300mg/kg和>300mg/kg的样品分别占50%和26%;碱解氮以高量水平为主,含量极为丰富,平均为300.2mg/kg,>200mg/kg的样品比例高达66%;大棚蔬菜地土壤的有效磷、速效钾和碱解氮含量均低于露天蔬菜地,而两类蔬菜地土壤的pH和有机质含量差异不大。The 50 representative vegetable soil samples over Hangzhou nine counties were randomly collected,and the soil pH、organic matter、available phosphorus、available potassium and alkali dispelled nitrogen were analyzed.The results indicated that the pH values of vegetable soil samples bases varied from 4.5 to 6.5,and acidic soil（pH＆lt;5.5） up to 30%.The contents of organic matter were at medium and high level,and 60 percent of them were higher than 30 g/kg.The contents of available phosphorus were all higher than 20 mg/kg and averaged 261.5 mg/kg,which were at a very high level.The contents of available potassium were at medium and high level,and the contents between 100-300 mg/kg were accounting for 50% while 26 percent of them were higher than 300 mg/kg.The contents of alkali dispelled nitrogen were so rich that averaged 300.2 mg/kg,and 66 percent of them were higher than 200 mg/kg.Soil available phosphorus、available potassium and alkali dispelled nitrogen in greenhouse vegetable were lower than that in open-air vegetable while there were no differences of soil pH and organic matter in the two types of vegetables.

关 键 词：蔬菜地 土壤肥力 杭州 

分 类 号：S158[农业科学—土壤学]