TY - SER AU - Aquino,R.F. AU - Lima,J.M.de AU - Magalhães,C.A.de S. AU - Silva,B.M. AU - Carvalho,R.F.de AU - Guilherme,L.R.G. TI - Atrazine in a corn cultivated area and its relaltion with the landscape position KW - MILHO KW - PLANTIO DIRETO KW - HERBICIDA KW - ATRAZINA ER -