Dynamics of soluble organic C and C mineralization in cultivated soils with varying N fertilization

abonos nitrogenados application rates carbon carbone carbono clay soils cultural soil types dose d'application loam soils mineralisation mineralization nitrogen fertilizers organic carbon sandy soils soil soil organic matter sol sol argileux sol sableux sol sablolimoneux suelo suelo arcilloso suelo arenoso suelo franco tipos de suelos cultivables type de sol de culture