Tillage and manure effects on soil and aggregate-associated carbon and nitrogen
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This study assesses the impacts of tillage methods (conventional(CT) versus no-tillage(NT)) and nitrogen source (fertilizer(F) versus manure(M)) on soil aggregate size and the associated soil carbon and nitrogen. They find that both no-tillage and manure increase soil aggregate size, with the combination of the two producing the greatest soil aggregation. Likewise, there was greater total carbon and nitrogen in the soil for the no-tillage and manure treatments.