The legacy of Brachiaria as a covercrop on soil nitrification, nitrous oxide emission and nitrogen use efficiency of maize

Lucas Pecci Canisares1, Letusa Momesso2, Ciro Antonio Rosolem2, Carlos Alexandre Costa Crusciol2, Daniel Villegas3, Jacobo Arango3 and Heitor Cantarella1, (1)Agronomic Institute of Campinas (IAC), Campinas, Brazil, (2)São Paulo State University, College of Agricultural Science, Botucatu, Brazil, (3)International Center for Tropical Agriculture (CIAT), Cali, Colombia