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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
16/05/2024 |
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Data da última atualização: |
11/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GIROTO, A. S.; GUIMARÃES, G. G. F.; MAJARON, V.; KLAIC, R.; AVANSI, W.; RIBEIRO, C. |
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Afiliação: |
EPAGRI - AGRICULTURAL RESEARCH AND RURAL EXTENSION COMPANY OF SANTA CATARINA; FEDERAL UNIVERSITY OF SÃO CARLOS; FEDERAL UNIVERSITY OF SÃO CARLOS; CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Effect of Urea: Hydroxyapatite Composites for Controlled-Release Fertilization to Reduce P Complexation in Soils. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analiysis, v. 55, n. 3, 2024. |
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Páginas: |
302 - 312 |
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DOI: |
https://doi.org/10.1080/00103624.2023.2268645 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT Phosphorous fixation in the soil is the most limiting factor for P-management, and previous studies have indicated that coupling nanoparticulated P sources (e.g. hydroxyapatite) in adequate matrices nanocomposites) can increase nutrient uptake. However, how the nanocomposite affects the P fixation is still an open question. Herein we describe X-ray absorption near edge structure (XANES) experiments to investigate the role of phosphate fertilizer (P) composite in reducing P complexation in soil. Experiments in a greenhouse (maize cultivation) and soil incubation comparatively revealed that a composite formed by the dispersion of hydroxyapatite (phosphate source) into urea could increase the production of dry matter (compared to monoammonium phosphate, MAP), keeping the residual P available in the soil for future cultivations (i.e. not strongly bonded to minerals). This behavior was evidenced by P-XANES, which indicated that the composite induced the bonding of remnant P to more labile organic fractions instead of mineral phases, as seen in MAP cultivation. |
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Palavras-Chave: |
Controlled release; P-complexation; P-speciation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01844naa a2200241 a 4500
001 2164289
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008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00103624.2023.2268645$2DOI
100 1 $aGIROTO, A. S.
245 $aEffect of Urea$bHydroxyapatite Composites for Controlled-Release Fertilization to Reduce P Complexation in Soils.$h[electronic resource]
260 $c2024
300 $a302 - 312
520 $aABSTRACT Phosphorous fixation in the soil is the most limiting factor for P-management, and previous studies have indicated that coupling nanoparticulated P sources (e.g. hydroxyapatite) in adequate matrices nanocomposites) can increase nutrient uptake. However, how the nanocomposite affects the P fixation is still an open question. Herein we describe X-ray absorption near edge structure (XANES) experiments to investigate the role of phosphate fertilizer (P) composite in reducing P complexation in soil. Experiments in a greenhouse (maize cultivation) and soil incubation comparatively revealed that a composite formed by the dispersion of hydroxyapatite (phosphate source) into urea could increase the production of dry matter (compared to monoammonium phosphate, MAP), keeping the residual P available in the soil for future cultivations (i.e. not strongly bonded to minerals). This behavior was evidenced by P-XANES, which indicated that the composite induced the bonding of remnant P to more labile organic fractions instead of mineral phases, as seen in MAP cultivation.
653 $aControlled release
653 $aP-complexation
653 $aP-speciation
700 1 $aGUIMARÃES, G. G. F.
700 1 $aMAJARON, V.
700 1 $aKLAIC, R.
700 1 $aAVANSI, W.
700 1 $aRIBEIRO, C.
773 $tCommunications in Soil Science and Plant Analiysis$gv. 55, n. 3, 2024.
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