Saccol, Ailo Valmir, and Valduino Estefanel. 1995. “Competition Between Barnyardgrass and Soybean Cultivated in Hydromorphic Soil. II. Effect on Some Agronomic Characteristics”. Pesquisa Agropecuaria Brasileira 30 (3):327-38. https://doi.org/10.1590/S1678-3921.pab1995.v30.4311.