Reference values for arable crop residues : Organic matter and C:N ratio

Samenvatting

Reference values for effective organic matter (EOM) values are used for calculating the organic matter input to soils. In order to update the EOM reference values of crop residues, biomass data was gathered from twelve common arable crops and an incubation experiment was conducted to determine humification coefficients, which is used to calculate the EOM input. The results of this study do not lead to a change in the current humification coefficients. This report proposes new reference values for (effective) organic matter andC:N ratio of crop residues.