Zeolitites (ZTs) are rocks containing more than 50% of zeolite minerals and are known to be
a suitable material for agricultural purposes by improving soil physicochemical properties
and nitrogen (N) use efficiency. However, little is known about their effects on soil microbial
biomass. This study aimed to evaluate short-term effects of different chabazite-rich ZT
(CHAZT) amendments on soil microbial biomass and activity. A silty-clay agricultural soil
was amended in three different ways, including the addition of natural (5% and 15%) and …