The effect of irrigation on soil C stocks is a result of the balance between the effect of this practice on C input through crop residues and of C losses through microbial decomposition of soil organic matter (SOM). This study aimed at assessing the influence of sprinkler irrigation on SOM dynamics and on the total C stocks in a subtropical Acrisol under no-till (NT) and conventional tillage (CT) in a long-term experiment (8 years). Irrigation increased the C addition (about […]

For most conditions, nitrogen is the nutrient that most affects corn yield.Nitrogen management should meet this crop requirement with a minimum environmental risk.To achieve this goal, nitrogen fertilization recommendation should be as precise as possible.The overall adoption of no-till and cover crops in Southern Brazil demands an adaptation of such recommendation.This recommendation was based on the CFS-RS/SC (1995) and its main modification was taking into account the contribution of the previous cover crop to N availability, besides the organic matter […]