Relationship between N, P, and K and the quality and stem structural characteristics of Caesalpinia echinata Lam. plants - Cuzzuol, Geraldo Rogério Faustini; Milanez, Camilla Rozindo Dias; Gomes, José Manoel Lúcio; Labate, Carlos Alberto; Canal, Emerson Campos (Trees - Structure and Function, 2013)