OSVALDO RYOHEI KATO, CPATU; MARIA DO SOCORRO ANDRADE KATO, CPATU; KONRAD VIELHAUER, UNIVERSITY OF BONN; PAUL L. G. VLEK, UNIVERSITY OF BONN.2026-06-30http://hdl.handle.net/123456789/386657Phosphorus deficiency is one of the main lirniting factors of crop production in Eastern Amazonian agriculture. The predorninant soils are Ultisols (U.S. Soil Taxonomy)[KVI), with a pH (CaCI2) of 4.7 and P, (Mehlich3) of 3 mg kg " soil. In fire-free land preparation, by using slash-and-muIch, this constraint is even amplified due to temporary immobilization processes. Tp. 262.openAccessProdutividade do milhoTipitambaCultivo MigratórioFertilizante FosfatadoResumo em anais e proceedings