Continuous application of direct sowing: Traffic effect on subsoil compaction and maize (Zea mays L.) yields in Argentinean Pampas.

Highlights: [•] Subsoil compaction occurs after five years of application of direct sowing systems. [•] We found that maize yields varied in response to subsoil compaction. [•] One pass a tractor and planter with weight above 144kN produced subsoil compaction. [•] Cone index measurements showed that subsoil compaction persisted for more than 4 year. [•] When the axle load increase on soils with high bearing capacity crop yields decrease. [Copyright &y& Elsevier]