01304nam a2200337 a 450000100080000000500110000800800410001910000130006024500570007326001270013030000100025752003750026765000200064265000120066265000130067465000130068765000220070065000260072265000220074865000260077065000290079665000150082565000110084065000160085165300130086765300110088065300170089165300110090870000200091970000270093916699572019-11-25       2000    bl uuuu     u00u1 u    #d1 aGOTZ, S.  aNitrogen management for perennial crops in Amazonia.  aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: Universityc2000  ap. 23  aThe nitrogen-suficiency of perennial crops on the Oxisols of central Amazonia is apparently related to the rather large mineralization rates of soil nitrogen, which have been measured both under forest and under agricultural vegetataion. In tree crop agriculture an agroforestry, nitrogen cycling can be further increased through the inclusion of leguminous cover crops.  acrop management  alegumes  anitrogen  aPueraria  asoil conservation  atropical rain forests  aCobertura do Solo  aConservação do Solo  aFloresta Tropical Úmida  aLeguminosa  aManejo  aNitrogênio  aAmazonas  aBrasil  aCover plants  aManaus1 aD'ANGELO, S. A.1 aRODRIGUES, M. do R. L.