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| 5. |  | FERREIRA, F. R.; DUVAL, M. F.; BERNASCONI, B.; CABRAL, J. R. S.; CARLIER, J.; FERREIRA, M. E.; LEAL, F.; LEITÃO, J.; MATOS, A. P. de; POT, D.; REIS, A.; SUAREZ, Z.; SANTOS, C. W. F.; D'EECKENBRUGGE, G. C. Avaliação e uso de germoplasma de abacaxi para obtenção de variedades melhoradas. In: D'EECKENBRUGGE, G. C. (Coord.). Evaluation and utilization of pineapple genetic resources from the Amazon to breed resistant varieties (IC18-CT96-0118): scientific annual report 1999. [Montpellier]: CIRAD-FLHOR; [Rome]: IPGRI, 1999. paginação irregular.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
27/09/2022 |
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Data da última atualização: |
27/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
GIROTO, A. S.; VALLE, S. F. do; GUIMARÃES, G. G. F.; WUYTS, N.; OHREM, B.; JABLONOWSKI, N. D.; RIBEIRO, C.; MATTOSO, L. H. C. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA. |
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Título: |
Zinc loading in urea-formaldehyde nanocomposites increases nitrogen and zinc micronutrient fertilization efficiencies in poor sand substrate. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 841, 156688, 2022. |
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Páginas: |
1 - 10 |
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ISSN: |
0048-9697 |
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DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2022.156688 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural output needs significant increases to feed the growing population. Fertilizers are essential for plant production systems, with nitrogen (N) being the most limiting nutrient for plant growth. It is commonly supplied to crops as urea. Still, due to volatilization, up to 50 % of the total N application is lost. Slow or controlled release fertilizers are being developed to reduce these losses. The co-application of zinc (Zn) as a micronutrient can increase N absorption. Thus, we hypothesize that the controlled delivery of both nutrients (N and Zn) in an integrated system can improve uptake efficiency. Here we demonstrate an optimized fertilizer nanocomposite based on urea:urea-formaldehyde matrix loaded with ZnSO4 or ZnO. This nanocomposite effectively stimulates maize development, with consequent adequate N uptake, in an extreme condition ? a very nutrient-poor sand substrate. Our results indicate that the Zn co-application is beneficial for plant development. However, there were advantages for ZnO due to its high Zn content. We discuss that the dispersion favors the Zn delivery as the nanoparticulated oxide in the matrix. Concerning maize development, we found that root morphology is altered in the presence of the fertilizer nanocomposite. Increased root length and surface area may improve soil nutrient uptake, potentially accompanied by increased root exudation of essential compounds for N release from the composite structure. |
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Palavras-Chave: |
Controlled-release; Fertilizer; Nitrogen losses; Urea-formaldehyde. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146881/1/P-Zinc-loading-in-urea-formaldehyde-nanocomposites-increases-nitrogen-and.pdf
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Marc: |
LEADER 02372naa a2200289 a 4500
001 2146881
005 2022-09-27
008 2022 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2022.156688$2DOI
100 1 $aGIROTO, A. S.
245 $aZinc loading in urea-formaldehyde nanocomposites increases nitrogen and zinc micronutrient fertilization efficiencies in poor sand substrate.$h[electronic resource]
260 $c2022
300 $a1 - 10
520 $aAgricultural output needs significant increases to feed the growing population. Fertilizers are essential for plant production systems, with nitrogen (N) being the most limiting nutrient for plant growth. It is commonly supplied to crops as urea. Still, due to volatilization, up to 50 % of the total N application is lost. Slow or controlled release fertilizers are being developed to reduce these losses. The co-application of zinc (Zn) as a micronutrient can increase N absorption. Thus, we hypothesize that the controlled delivery of both nutrients (N and Zn) in an integrated system can improve uptake efficiency. Here we demonstrate an optimized fertilizer nanocomposite based on urea:urea-formaldehyde matrix loaded with ZnSO4 or ZnO. This nanocomposite effectively stimulates maize development, with consequent adequate N uptake, in an extreme condition ? a very nutrient-poor sand substrate. Our results indicate that the Zn co-application is beneficial for plant development. However, there were advantages for ZnO due to its high Zn content. We discuss that the dispersion favors the Zn delivery as the nanoparticulated oxide in the matrix. Concerning maize development, we found that root morphology is altered in the presence of the fertilizer nanocomposite. Increased root length and surface area may improve soil nutrient uptake, potentially accompanied by increased root exudation of essential compounds for N release from the composite structure.
653 $aControlled-release
653 $aFertilizer
653 $aNitrogen losses
653 $aUrea-formaldehyde
700 1 $aVALLE, S. F. do
700 1 $aGUIMARÃES, G. G. F.
700 1 $aWUYTS, N.
700 1 $aOHREM, B.
700 1 $aJABLONOWSKI, N. D.
700 1 $aRIBEIRO, C.
700 1 $aMATTOSO, L. H. C.
773 $tScience of the Total Environment$gv. 841, 156688, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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