Suppression of Native Soil Organic Matter Decomposition by Post-Fermentation Sludge in Agriculture Soil as Assessed by 13C Natural Abundance

Wioleta Stelmach1, Andrzej Bieganowski1 and Yakov Kuzyakov2, (1)Institute of Agrophysics Polish Academy of Sciences, Lublin, Poland, (2)Georg-August-Universitaet Goettingen, Department of Agricultural Soil Science, Goettingen, Germany