Mechanical chiseling is not only costly, but also is a practice that
opposes the NT system precepts, since it involves intense disturbance of
soil, greater traffic of machinery, additional use of agricultural implements
in crops, and increased cost of production (Bertolini and Gamero, 2010).
Therefore, it is important to conduct an assessment of its effects on the
soil aggregation state, as well as on the persistence of these effects to remedy
restrictions on root growth in areas under NT system.