Universität Hamburg; Embrapa Amazônia Ocidental.2026-06-30http://hdl.handle.net/123456789/378969We 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), cupuaçu, Brazil nut (castanha-do-Pará), annatto (urucu) and the cover crop Pueraria phaseoloides.openAccessAgroflorestaBrasilAmazonasManausAdubaçãoBactris GasipaesConservação do SoloCupuaçuCultivo MultiploFloresta Tropical ÚmidaNutriçãoPupunhaTheobroma GrandiflorumResumo em anais e proceedings