01018naa a2200193 a 450000100080000000500110000800800410001902400490006010000160010924501040012526000090022952004490023865000150068770000200070270000240072270000160074670000160076277300460077821199412025-03-21       2001    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1023/A:10133207210482DOI1 aLEHMANN, J.  aPhosphorus management for perennial crops in central Amazonian upland soils.h[electronic resource]  c2001  aThe present contribution discusses the soil P status of central Amazonian upland soils, the effects of tree crops on soil P availability and the factors controlling soil P cycling in land use systems with tree crops. Soil fertility management has to target the prevalent P deficiency by adequate P fertilization, especially in southern and northern municipalities of central Amazônia where the largest areas with severe P deficiency are found.  aAcid soils1 aCRAVO, M. da S.1 aMACEDO, J. L. V. de1 aMOREIRA, A.1 aSCHROTH, G.  tPlant and Soilgv. 237, p. 309-319, 2001.