Prando, A. M., Zucareli, C., Fronza, V., Oliveira, F. Á. de, & Oliveira Júnior, A. (2013). Productive characteristics of wheat according to nitrogen sources and levels. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], 43(1), 34-41. https://doi.org/10.5216/pat.v43i1.20247