Authors: Wrege, MS Caramori, PH Goncalves, SL de Almeida, WP Marur, CJ Pires, JR Yamaoka, RS

Citation: Ms. Wrege et al., Cotton zoning based on sowing periods of lower risk in Parana State, Brazil, BRAZ ARCH B, 43(1), 2000, pp. 71-79