Total carbohydrates of the soil microbial biomass in 0.5M K2SO4 soil extracts

arable soils biomasa biomass biomasse carbohidratos carbohydrates carbon carbone carbono extractos extracts extrait forest soils fumigation glucide grassland soils land use microorganisme microorganismos microorganisms organic carbon organic compounds soil soil types sol sol arable sol d'herbages suelo suelo de praderas suelo forestal suelos cultivables tipos de suelos type de sol utilisation des terres