ASSIS, Gleice; GUIMARÃES, Rubens; COLOMBO, Alberto; SCALCO, Myriane; DOMINGHETTI, Anderson. Critical ranges for leaf nitrogen and potassium levels in coffee fertigated at the production phase. Revista Ciência Agronômica, [S. l.], v. 46, n. 1, 2014. Disponível em: https://periodicos.ufc.br/revistacienciaagronomica/article/view/84552. Acesso em: 17 mar. 2026.