Soil phosphorus properties and management for perennial crops in the central Amazon.

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dc.contributorMANOEL DA SILVA CRAVO, CPAA
dc.contributorJEFERSON LUIS VASCONCELOS DE MACEDO, CPAA.
dc.creatorCRAVO, M. da S.
dc.creatorLEHMANN, J.
dc.creatorMACEDO, J. L. V. de
dc.date2014-10-15T11:11:11Z
dc.date2014-10-15T11:11:11Z
dc.date2014-10-15
dc.date2002
dc.date2014-10-15T11:11:11Z
dc.date.accessioned2026-06-30T23:19:20Z
dc.descriptionTree crop production is gaining considerable importance in the central Amazon. However, the soils in the central Amazon are extremely poor in available P. The present contribution assesses the soil P status of central Amazonian upland soils, the effects of fertilization on soil P availability and tree crop growth, as well as the influence of large P recycling by tree crops on soil P availability. Soil fertility management has to target the prevalent P deficiency by adequate P fertilization. P fixation to clay minerals was not a major obstacle for P management in the highly weathered soils of the central Amazon due to their high kaolinite contents. P fertilization to tree crops is effective in aleviating P deficiency and increasing crop growth. Large P return to soil by litterfall, throughfall and stemflow was found to improve soil P availability. Tree crops were found to be P conservative with respect to exports. Once fertilization replenished P for biomass production, P fertilization can be reduced to match P exports by harvests.
dc.identifierIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS. ACHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings... Hamburg: SHIFT: MADAM: WAVES, 2002. p. 477-484.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/997396
dc.identifier.urihttp://hdl.handle.net/123456789/378954
dc.languageeng
dc.rightsopenAccess
dc.subjectCentral Amazon
dc.subjectNutrient Cycling
dc.subjectPerennial Crops
dc.subjectP Fixation
dc.subjectphosphorus
dc.subjectsoil types
dc.titleSoil phosphorus properties and management for perennial crops in the central Amazon.
dc.typeArtigo em anais e proceedings

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Embrapa Amazonía Occidental (CPAA)