Turnover of clay-associated organic nitrogen in the different aggregate-size classes of a cultivated silty loam.

azote complejos organominerales estructura del suelo fracciones del suelo fraction du sol grosseur des particules loam soils nitrogen organomineral complexes particle size silty soils soil soil organic matter soil separates soil structural units soil structure sol sol limoneux sol sablolimoneux structure du sol suelo suelo franco suelo limoso technique des traceurs textural soil types tipos texturales de suelos tracer techniques type de sol textural unidades estructurales de suelos