Effect of seed-furrow openers on soybean root growth in compacted Oxisol - Modolo, Alcir José; Dedordi, Gabrielli Fiorentin; Vargas, Thiago de Oliveira; Dallacort, Rivanildo; Baesso, Murilo Mesquita; Campos, Jose Ricardo da Rocha; Trentin, Robson Gonçalves; Andrade, Gilberto Santos; Trogello, Emerson (African Journal of Agricultural Research, 2017)