M. J. CARDOSO, H. W. L. CARVALHO, L. M. P. ROCHA, L. M. GUIMARÃES, and P. E. GUIMARÃES, “IRRIGATED MAIZE CROP: GRAIN YIELD IN TWO SOWING SEASONS IN THE MUNICIPALITY OF TERESINA, PIAUÍ”, RBMS, vol. 19, p. 12, Oct. 2020.