[1]
C. Rosolem, E. Malavolta, and J. Nakagawa, “ Studies on mineral nutrition of grain sorghum, VII. effects of nitrogen ”, An. Esc. Super. Agr. Luiz de Queiroz, vol. 37, no. 1, pp. 33–47, Jan. 1980, doi: 10.1590/S0071-12761980000100004.