几种花卉栽培基质理化性状比较  

Comparison on Physicochemical Characters of Several Flower Culture Substrates

作　　者：刘倩 白雪薇 吴建芝 李芳 Liu Qian(Beijing Institute of Landscape Architecture,Beijing Key Laboratory of Ecological Function Assessment and Regu.lation Technology of Green Space,Beijing 100102,China)

机构地区：[1]北京市园林科学研究院,园林绿地生态功能评价与调控技术北京市重点实验室,北京100102

出　　处：《安徽农学通报》2018年第7期53-55,共3页Anhui Agricultural Science Bulletin

基　　金：北京市科技计划项目“北京市园林绿化废弃物堆肥化处理关键技术研究与示范”(D09040903780802)

摘　　要：该研究对北京花卉市场中常见的栽培基质和进口基质进行容重、孔隙度、持水量、p H值、电导率(EC)、有机质和养分含量指标比较,分析国产花卉栽培基质与进口基质的差异,以改善国产基质,保证花卉栽培质量。结果表明:国产基质EC值均高于进口基质,其中氮、磷、钾养分失衡;国产基质的有机质含量低于进口基质;国产基质多为碱性,进口基质为酸性。为改善国产基质,建议降低基质中有效态养分含量过高原料的比例,使基质中的氮、磷、钾养分含量均衡,同时降低国产基质的EC值;加入酸性肥料如硫酸亚铁,以降低基质p H值。Physicochemical characters(including bulk density,porosity,water retention,pH,EC,contents of or?ganic matter,N,P and K)of imported substrate and domestic substrates were compared in this study.EC of domes?tic substrates were higher than that of imported substrate.Compared with imported substrate,contents of available N,P and K in several domestic substrates were not balance for the growth of flowers.Contents of organic matter in domestic substrates were significantly lower than that of imported substrate.All domestic substrates were alkaline,but imported substrate was acidic.The proportion of N:P:K should be adjusted according to the requirement of flower growth.It was necessary to reduce EC of domestic substrates and acidic fertilizer(e.g.ferrous sulfate)could be complemented to drop pH of domestic substrates.

关 键 词：花卉 栽培基质 理化性状 EC值 PH值 

分 类 号：S66[农业科学—果树学]