Beltrano, José, and Daniel O. Caldiz. “Effects of Johnsongrass (Sorghum Halepense L. Per.) Densities on Potato (Solanum Tuberosum L.) Yield”. Pesquisa Agropecuaria Brasileira 28, no. 1 (January 1, 1993): 21–24. Accessed October 16, 2026. https://apct.sede.embrapa.br/pab/article/view/3857.