Physicogenic and biogenic aggregates under different management systems in the Cerrado region, Brazil
Luiz Alberto da Silva Rodrigues Pinto, José Luiz Rodrigues Torres, Igor de Sousa Morais, Robert Ferreira, Wanderson Farias da Silva, Sandra Santana de Lima, Sidinei Júlio Beutler, Marcos Gervásio Pereira
Abstract
An important strategy for the sustainable management of Cerrado soils is no-till (NT) systems, which may improve soil properties, particularly aggregation. Soil aggregates can be categorized according to their formation pathways into physicogenic (Phy) and biogenic (Bio). This study aimed (i) to quantify the relative proportion of physicogenic and biogenic aggregates and (ii) evaluate the levels of total organic carbon and their respective humic and physical fractions in the aggregates’ formation pathways. The following managed and unmanaged sites were [...]