堆肥添加と頻繁な切り返しによる剪定枝葉の堆肥化特性

概要

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We investigated the changes in chemical and biological characteristics of composting of plant waste from pruning to obtain the fundamental knowlege for planning objective decision of composting stage. The composting was carried out using addition of compost as submaterial and frequently airing. The composting process was devided into three stages. In the first stage, increasing of humus concentration, decreasing of easily decomposable organic matter, increase and decrease of microbial activity and losing inhibition of germination were founded. In the second stage, increasing nitrogen concentration and exchangeable bases and increase and decrease of microbial activity were founded. In the third stage, slight decreasing of exchangeable bases were founded. Therefore, humus concentration were available for the index of end of the first stage. It is possibe that microbial activity was available for the objactive index of composting stage by combining with humus concentration or period of time of compostiong.
社団法人日本造園学会の論文