Lima, R.C. Mello, L.M.M. de Yano, É.H. Silva, J.O.R. da Cesarin, A.L. Modalities for soil preparation and gypsum application in ultisol: stem productivity of sugarcane Subjects--Topical Terms: CANA DE ACUCARANALISE DO SOLOQUIMICA DO SOLOMECANIZACAOGESSOCOLHEITA