Linking decomposition rates of soil organic amendments to their chemical composition

The stock of organic carbon contained within a soil represents the balance between inputs and losses. Inputs are defined by ability vegetation to capture retain dioxide, effects that management practices have on proportion captured is added application amendments. amendment retained its rate mineralisation. In this study, mineralisation from 85 different potential amendments (composts, manures, plant residues biosolids) was quantified under controlled environmental conditions over 547 day incubation period. composition each using nuclear magnetic resonance mid- near-infrared spectroscopies. Cumulative fitted two-pool exponential model. Multivariate chemometric algorithms were derived allow size fast slow cycling pools be predicted acquired spectroscopic data. However, decomposition constants could not suggesting prediction residence time in would likely require additional information related type, conditions, use at site application.