Bertoldo, J.G., Pelisser, A., Silva, R.P. da, Favreto, R. and Oliveira, L.A.D. de 2015. Alternatives in bean fertilization to reduce the application of N-urea. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]. 45, 3 (Sep. 2015), 348–355.