02246nam a2200517 a 450000100080000000500110000800800410001910000270006024500850008726001280017230000120030052007910031265000150110365000120111865000220113065000220115265000190117465000260119365000150121965000210123465000250125565000210128065000200130165000220132165000090134365000190135265000260137165000130139765000240141065000290143465000290146365000120149265000220150465000150152665000260154165000120156765000270157965300130160665300160161965300110163565300170164665300280166365300110169165300100170270000160171216700432020-01-30       2000    bl uuuu     u00u1 u    #d1 aSILVA JUNIOR, J. P. da  aImportance of Pueraria phaseoloides for the N cycle in tropical tree production.  aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: Universityc2000  ap. 184.  aThe objective of this study was to analyse the biomass production and nutrition of pueraria as a cover crop grown in three different agroforestry systems (System 1: cupuacu, pupunha (peach palm), and seringueira (rubber tree); System 2: cupuacu, pupunha and urucu (annatto); System 3: cupuacu, seringueira, coco and citrus) at two levels of fertilisation, and its potential to contribute to the N stocks of the cropping system by biological N2 fixation, in Manaus-AM (Brasil). The larger nutrient uptake and return through litter indicated a rapid nutrient cycling at the plant-topsoil interface thus reducing leaching and keeping nutrients in a vailable form. The considerable amount of biologically fixed N2 was a relevant and important addition to the N pool of the cropping systems.  aFerralsols  alegumes  anitrogen fixation  asoil conservation  asoil fertility  atropical rain forests  aAdubação  aBactris Gasipaes  aBertholletia Excelsa  aCastanha do Para  aCitrus Sinensis  aCobertura do Solo  aCoco  aCocos Nucifera  aConservação do Solo  aCupuaçu  aFertilidade do Solo  aFixação de Nitrogênio  aFloresta Tropical Úmida  aLaranja  aLatossolo Amarelo  aLeguminosa  aPueraria Phaseoloides  aPupunha  aTheobroma Grandiflorum  aAmazonas  aBixa orella  aBrasil  aCover plants  aFertilizers application  aManaus  aUrucu1 aLEHMANN, J.