Mechanical and Biological Soil Decompaction for No-Tillage Maize Production

Soil structural quality in areas under a no-tillage system is altered after successive crops, where compaction recurrent problem. The objective of this study was to evaluate the effect different forms soil decompaction on maize grain production. A randomized split-plot block design with four replications used, 5 × 3 2 factorial arrangement, consisting five mechanical decompaction: ripping depth 0.3 m, 0.5 subsoiling and no-tillage; three crop seasons: 2014/2015, 2015/2016, 2016/2017; two cover crops: sunn hemp pearl millet. resistance root penetration (RP, 0.0–0.40 m), density (0.0–0.40 moisture fresh (FB), dry (DB) above-ground biomass yield were evaluated. or m results higher production but has no Mechanical biological improved throughout seasons by at least 28% above average area region. RP up 3.3 MPa did not negatively affect grain. association between method using crops provided greater resilience preparation carried out years application treatments, resulting corn productivity.