Blanco, Hélio García, Roberto Antonio Arévalo, Soyako Chiba, and Izabel P. de Sordi. “Effects of Barnyardgrass on Rice Plants at Different Levels of Nitrogen and Phosphorus Fertilizers”. Pesquisa Agropecuaria Brasileira 26, no. 2 (February 1, 1991): 193–199. Accessed March 26, 2026. https://apct.sede.embrapa.br/pab/article/view/3329.