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dos Santos, H. P.; Reis, E. M.; Woberto, C. Crop Rotation in Guarapuava. IX. Effects on Yield and Root Rot Diseases of Barley, under Direct Drilling from 1984 to 1988. PAB 1991, 26 (6), 901-906. https://doi.org/10.1590/S1678-3921.pab1991.v26.3420.