Deficiency symptoms and uptake of micronutrients by castor bean grown in nutrient solution - Lavres Junior, José; Cabral, Cleusa Pereira; Rossi, Mônica Lanzoni; Rodrigues, Thiago Assis Nogueira; Nogueira, Neusa de Lima; Malavolta, Eurípedes (Revista Brasileira de Ciência do Solo, 2012)