Melo, Ricardo Wanke de, Denise Cybis Fontana, and Moacir Antonio Berlato. “Soybean Production Pointers in Rio Grande Do Sul Compared to the Agricultural Zoning”. Pesquisa Agropecuaria Brasileira 39, no. 12 (December 1, 2004): 1167–1175. Accessed March 26, 2026. https://apct.sede.embrapa.br/pab/article/view/6892.