[Effects of CaCO Application on Soil Microbial Nitrogen Cycle in an Acid Soil].

Soil nitrification and denitrification are important steps in closing the nitrogen cycle. Understanding the effects of CaCO application on the physicochemical properties and nitrogen cycle in acid soil would provide some theoretical and technical information for stable and sustainable utilization of this agricultural soil. In this study, a field trial was conducted in Xiangtan city, Hunan province.