TY - RPRT TI - Evidence that elevated CO2 levels can indirectly increase rhizosphere denitrifier activity AU - Smart, D. R. AU - Ritchie, K. AU - Stark, J. M. AU - Bugbee, B. PY - 1997 UR - https://ntrs.nasa.gov/citations/20040112197 ID - 20040112197 ER -