Physical and biological quality of soil tillage technologies in the corn-silage system

The operation of growing corn for silage is one of the agricultural practices that most predisposes the soil to compaction due to the intense traffic of machines, low increment of plant material and soil tillage. The use of forages with good biomass, the planting of legumes between rows, organic fertilization and microbial inoculation, associated or not with no-tillage technology, have been options to mitigate the impacts of this production system. The aim of this work was to propose a conservationist management associations consideringsoil, crop and inoculation to mitigate the impacts of this crop system. To evaluate these effects, biological indicators such as, Soil basal respiration, Carbon of microbial biomass and Metabolic quotient were used, and to assess soil compaction, soil resistance to penetration was measured using an impact penetrometer. Noting that the intercropping provides greater tolerance to soil compaction through the promotion of micropores, carbon accumulation by the greater contribution of organic matter, increase in soil microbial activity and when associated with inoculation, it improves these effects, even reflecting on the productivity of the culture.