Soil compaction by machine traffic and least limiting water range related to soybean yield - Beutler, Amauri Nelson; Centurion, Jose Frederico; Silva, Álvaro Pires da; Centurion, Maria Aparecida Pessoa da Cruz; Leonel, Cristian Luarte; Freddi, Onã da Silva (Pesquisa Agropecuária Brasileira, 2008)