Incidence (A, C and E) and severity (B, D and F) of Curvularia leaf spot (Curvularia spp.) (A and B), Diplodia leaf streak (Stenocarpella maydis) (CD), and leaf blight (Bipolaris sp. or Exserohilum sp.) (EF) in maize plants (reproductive phenological stage 5) fertilized with three organic sources (castor bean cake, physic nut seedcake, and vermicompost), using a control with urea and another without fertilizer application.