Mota, Fernando Silveira da, and Marisa Oliveira de Oliveira Agendes. 1991. “Climatic Information for Planning Soybean Irrigation in Rio Grande Do Sul, Brazil”. Pesquisa Agropecuaria Brasileira 26 (3):391-95. https://doi.org/10.1590/S1678-3921.pab1991.v26.3354.