Comportamiento de las formas de fósforo y sus relaciones con la absorción de P por la avena, bajo tres fuentes de fertilización fosfatada en un latosol de Nariño, Colombia

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dc.creatorOrtega E., J.
dc.creatorGuerrero Riascos, R.
dc.date2025-07-01T18:03:23Z
dc.date2025-07-01T18:03:23Z
dc.date1972-10
dc.date.accessioned2026-06-09T02:31:30Z
dc.descriptionUnder greenhouse conditions, it was evaluated by effect of four levels, and three sources of P2O5 on oat production and on the soil P fractions, as well as the interactions of these factions with the absorption of P by the plant. The soil used was a latosol from the Pacific coasts of Nariño, Colombia. The levels of P2O5 linearly and significantly increased dry matter production, P absorption, non-apatitic calcium phosphates and aluminum phosphates. Their effect on the apatitic calcium phosphates was quadratic and on organic-P was cubic. Levels of P205 did not affect iron phosphates. Basic slag and triple superphosphate were equally efficient in supplying P to the plant, largely surpassing phosphoric rock whose effectiveness was nil. The interaction effect of level due to source showed that the precipitation of the added-P into the different P fractions was independent from the source used. The contribution of P forms to P absorption by the plant of operated in the following priority order: P-Al (r = 0.70**) > P-Fe (r = 0.59*) ≥ non apat: P-Ca (r = 0.50) > P-org (r = 0.43) > apat. P-Ca and non-apatitic P-Ca, in the three added sources, was in the following intensity sequence: P-Al. Basic slag (r = 0.75**) > Triple sup. phosp (r = 0.55) > Phosp rock (r = 0.30). P-Fe. Triple sup. phos (r = 0.70**) > Basic slag (r = 0.34 > Phosp. rock (r = 0.30) Non apat P-Ca. Basic slag (r = 0.72**) > Triple sup. phosphate (r = 0.67*) > Phosp. rock (r = 0.28). Results indicated that the greater part of the P added to the soil as fertilizer was precipitated into the different phosphate forms but being afterwards released to be available to the plant.
dc.format11 páginas
dc.formatapplication/pdf
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/13112
dc.identifieropenAccess
dc.identifier.urihttp://hdl.handle.net/123456789/11583
dc.languagees
dc.publisherInstituto Interamericano de Cooperación para la Agricultura (IICA)
dc.relationTurrialba; Vol.22, no. 4
dc.subjectFósforo||phosphorus||Fósforo||phosphore
dc.subjectAvena||oats||aveia||avoine
dc.subjectTécnica de laboratorio||laboratory techniques||técnica de laboratório||technique de laboratoire
dc.subjectColombia||Colombia||Colômbia||Colombie
dc.subjectSede Central
dc.titleComportamiento de las formas de fósforo y sus relaciones con la absorción de P por la avena, bajo tres fuentes de fertilización fosfatada en un latosol de Nariño, Colombia
dc.typeArtículo

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