土ど壌じょう細さい菌きんMeanings1nounsoil bacteriaTechnical term used in microbiology, agriculture, and environmental science.土ど壌じょう細さい菌きんは有ゆう機き物ぶつの分ぶん解かいに重じゅう要ような役やく割わりを果はたす。Soil bacteria play an important role in the decomposition of organic matter.