02025nam a2200481 a 450000100080000000500110000800800410001910000190006024501120007926001280019130000120031952006410033165000170097265000120098965000220100165000220102365000190104565000150106465000210107965000250110065000180112565000210114365000220116465000260118665000210121265000130123365000240124665000290127065000150129965000260131465000120134065000270135265300170137965300130139665300110140965300170142065300280143765300110146565300250147665300100150170000160151170000160152716700402015-06-17       2000    bl uuuu     u00u1 u    #d1 aMOTA, M. do S.  aFertilization effects on soil P, K, Ca and Mg contents in a mixed tree cropping system in Central Amazonia.  aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: Universityc2000  ap. 180.  aStudy on the fertilizer effects on P, K, Ca and Mg contents in mixed tred cropping system (castanha-do-Para, pupunha, cupuacu, pueraria). Fertilizers at four different levels (30%, 100%, 100%+P and 30%-N-lime) of the recommended fertilization, Embrapa Amazonia Ocidental, Manaus-AM, Brasil). The high soil nutrient contents under pupunha indicated that this species does not need the large amounts of fertilizers applied. For urucu, the P and K fertilization could be reduced. Generally, the species effect was more clearly visible below 15 cm depth, whereas the effect of fertilizationdominated the nutrient differences at the topsoil.  aagroforestry  alegumes  amultiple cropping  asoil conservation  asoil fertility  aAdubação  aBactris Gasipaes  aBertholletia Excelsa  aBixa Orellana  aCastanha do Para  aCobertura do Solo  aConservação do Solo  aCultivo Multiplo  aCupuaçu  aFertilidade do Solo  aFloresta Tropical Úmida  aLeguminosa  aPueraria Phaseoloides  aPupunha  aTheobroma Grandiflorum  aAgrofloresta  aAmazonas  aBrasil  aCover plants  aFertilizers application  aManaus  aTropical rain forest  aUrucu1 aLEHMANN, J.1 aSCHROTH, G.