American Journal of Botany · 1957 · 44 citations · 0 references
AgricultureEarth SciencesSoil SciencesSoil BiogeochemistrySoil FertilitySoil ScienceNitrogen CycleNitrogen CyclingNitrogen FixationNitrogen Fixation In SoilsSoil Microbial BiomassSurface CrustingMicrobial Biomass NitrogenOrganic Nitrogen SourcesSoil Nitrogen DynamicsSoil Nitrogen MineralizationSurface Crusts