Subathra Muruganandam Muruganandam, S., Israel, D. W., & Robarge, W. P. (2009). Activities of Nitrogen-Mineralization Enzymes Associated with Soil Aggregate Size Fractions of Three Tillage Systems. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 73(3), 751–759. https://doi.org/10.2136/sssaj2008.0231 Shi, W., Muruganandam, S., & Bowman, D. (2006). Soil microbial biomass and nitrogen dynamics in a turfgrass chronosequence: A short-term response to turfgrass clipping addition. SOIL BIOLOGY & BIOCHEMISTRY, 38(8), 2032–2042. https://doi.org/10.1016/j.soilbio.2006.01.005