蔬菜废物高温堆肥作为黄瓜育苗基质的生物毒性评估  

Biotoxicity Assessment of Vegetable Waste Compost as Peat Substitutes Soilless Growing Media for Cucumber Seedling

作　　者：杜鹏祥 龚建英[1] 韩雪[1] 常瑞雪[1] 李彦明[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100193

出　　处：《北方园艺》2014年第24期168-172,共5页Northern Horticulture

基　　金：国家公益性行业(农业)科研专项经费资助项目(201303079)

摘　　要：以单添传统基质草炭为对照,分别添加体积比为5%、10%、20%、40%、60%的蔬菜废物堆肥部分替代草炭,通过对黄瓜种子的发芽率、幼苗死亡率以及幼苗生长的营养指标(包括株高、茎粗、叶面积、根长、生物量、叶绿素含量和壮苗指数)进行综合评估,得到最佳的替代比例。结果表明:蔬菜废物堆肥添加比例为20%替代效果最好;蔬菜废物堆肥添加比例大于20%,黄瓜种子发芽率降低,对黄瓜幼苗的生长有一定的抑制作用,并在育苗后期出现一定程度的死苗现象。The potential value of vegetable waste compost（VC）used as alternatives to peatmoss for growing medium component were studied.A commercial peatmoss used as control treatment,and five VC＋peatmoss mixtures were included：VC5（peatmoss＋5%VC）,VC10（peatmoss＋10%VC）,VC20（peatmoss＋20%VC）,VC40（peatmoss＋40%VC）,VC60（peatmoss＋60%VC）.To get the optimum mixture proportion,the seedling emergence and vegetative parameters（including seedling height,length and width of the most developed leaf,length of roots,biomass,stem diameter,chlorophyll content and death rate）were measured.The results showed that substrate adding VC 20%showed the best performance;substrate adding more than 20%of VC could reduce cucumber seedling emergence and hinder the growth of cucumber seedlings,and the death seedling was appear in later stage.

关 键 词：蔬菜废物 堆肥 育苗基质 

分 类 号：S642.204.3[农业科学—蔬菜学]