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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
20/07/2021 |
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Data da última atualização: |
26/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MEYER, G.; BELL, M. J.; LOMBI, E.; DOOLETTE, C. L.; BRUNETTI, G.; NOVOTNY, E. H.; KLYSUBUN, W.; ZHANG, Y.; KOPITTKE, P. M. |
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Afiliação: |
GREGOR MEYER, THE UNIVERSITY OF QUEENSLAND; MICHAEL J. BELL, THE UNIVERSITY OF QUEENSLAND; ENZO LOMBI, UNIVERSITY OF SOUTH AUSTRALIA; CASEY L. DOOLETTE, UNIVERSITY OF SOUTH AUSTRALIA; GIANLUCA BRUNETTI, UNIVERSITY OF SOUTH AUSTRALIA; ETELVINO HENRIQUE NOVOTNY, CNPS; WANTANA KLYSUBUN, SYNCHROTRON LIGHT RESEARCH INSTITUTE; YAQI ZHANG, THE UNIVERSITY OF QUEENSLAND; PETER M. KOPITTKE, THE UNIVERSITY OF QUEENSLAND. |
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Título: |
Phosphorus speciation in the fertosphere of highly concentrated fertilizer bands. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Geoderma, v. 403, 115208, Dec. 2021. |
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DOI: |
https://doi.org/10.1016/j.geoderma.2021.115208 |
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Idioma: |
Inglês |
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Conteúdo: |
The factors affecting chemical transformations of phosphorus (P) in highly concentrated fertilizer bands have received little attention, with no previous studies having utilized in situ approaches to examine these changes in P speciation within the fertosphere. In the present study, an incubation experiment was conducted to examine the impact of soil properties, the form of P and the co-application of K on changes in P speciation in highly concentrated fertilizer bands. In non-calcareous soils, the precipitation of P as Al-P minerals was found to be critical, with decreases in pH increasing solubilization of soil Al, increasing the precipitation of Al-P minerals, and hence markedly decreasing potential P availability. As a result, factors altering pH, including soil properties and the form of the P fertilizer, are important in determining P availability through regulation of Al-P precipitation. In a calcareous soil, P availability was greatly reduced due to precipitation of Ca-P minerals. The co-application of K resulted in comparatively subtle changes in P speciation, being most pronounced in soils with a high cation exchange capacity, likely by altering Ca- and Mg-P precipitation. The finding that soil properties and the form of P supplied were more important than the co-application of K in controlling P solubility indicates that optimizing P form is important when designing fertilizer placement strategies. |
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Palavras-Chave: |
Especiação; Precipitação; Precipitation; Speciation. |
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Thesagro: |
Fertilizante; Fósforo; Potássio. |
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Thesaurus Nal: |
Fertilizers; Phosphorus; Potassium. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02371naa a2200349 a 4500
001 2133050
005 2021-10-26
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.geoderma.2021.115208$2DOI
100 1 $aMEYER, G.
245 $aPhosphorus speciation in the fertosphere of highly concentrated fertilizer bands.$h[electronic resource]
260 $c2021
520 $aThe factors affecting chemical transformations of phosphorus (P) in highly concentrated fertilizer bands have received little attention, with no previous studies having utilized in situ approaches to examine these changes in P speciation within the fertosphere. In the present study, an incubation experiment was conducted to examine the impact of soil properties, the form of P and the co-application of K on changes in P speciation in highly concentrated fertilizer bands. In non-calcareous soils, the precipitation of P as Al-P minerals was found to be critical, with decreases in pH increasing solubilization of soil Al, increasing the precipitation of Al-P minerals, and hence markedly decreasing potential P availability. As a result, factors altering pH, including soil properties and the form of the P fertilizer, are important in determining P availability through regulation of Al-P precipitation. In a calcareous soil, P availability was greatly reduced due to precipitation of Ca-P minerals. The co-application of K resulted in comparatively subtle changes in P speciation, being most pronounced in soils with a high cation exchange capacity, likely by altering Ca- and Mg-P precipitation. The finding that soil properties and the form of P supplied were more important than the co-application of K in controlling P solubility indicates that optimizing P form is important when designing fertilizer placement strategies.
650 $aFertilizers
650 $aPhosphorus
650 $aPotassium
650 $aFertilizante
650 $aFósforo
650 $aPotássio
653 $aEspeciação
653 $aPrecipitação
653 $aPrecipitation
653 $aSpeciation
700 1 $aBELL, M. J.
700 1 $aLOMBI, E.
700 1 $aDOOLETTE, C. L.
700 1 $aBRUNETTI, G.
700 1 $aNOVOTNY, E. H.
700 1 $aKLYSUBUN, W.
700 1 $aZHANG, Y.
700 1 $aKOPITTKE, P. M.
773 $tGeoderma$gv. 403, 115208, Dec. 2021.
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Embrapa Solos (CNPS) |
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