Hippler, F.W.R. Boaretto, R.M. Teixeira, L.A.J. Quaggio, J.A. Mattos Júnior, D. Copper supply and fruit yield of young Citrus trees: fertiliser sources and application methods Subjects--Topical Terms: CITRICULTURAMICROELEMENTOFERTIRRIGAÇÃOADUBAÇÃO FOLIARMANEJO DO SOLO