Can we manipulate resource availability to drive changes in microbial carbon assimilation and nitrogen cycling?

摘要

Decomposition of soil organic matter (SOM) is controlled by microorganisms and leads to the release of nitrogen and other nutrients. However, soil microbial activity is often limited by the absence of readily available carbon-based substrates. This paper discusses the effect of stubble management (stubble burning vs. stubble retention) and temperature on microbial carbon respiration and nitrogen cycling. We then examine the application of labile carbon substrates under controlled conditions on microbial process rates.