Bolsista CNPq; University of Hamburg; Embrapa Amazonia Ocidental.2026-06-30http://hdl.handle.net/123456789/379831We studied soil fertility and plant nutrition in multi-strata agroforestry systems with several perennial crop species at four fertilization levels to obtain information on growth-limiting nutrients and to develop optimum sampling schemes for foliar analysis for the different species: peach palm (pupunha), cupuacu, Brazil nut (castanha-do-Para), annatto (urucu) and the cover crop Pueraria phaseoloides.p. 226.openAccessAgroflorestaBrasilAmazonasManausFertilizers applicationAdubaçãoBactris GasipaesCupuaçuCultivo MultiploConservação do SoloFloresta Tropical ÚmidaNutriçãoPupunhaTheobroma Grandiflorumagroforestryplant nutritionmultiple croppingsoil conservationtropical rain forestsResumo em anais e proceedings