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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
04/12/2018 |
Data da última atualização: |
17/04/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FRAZÃO, J. J.; BENITES, V. de M.; RIBEIRO, J. V. S.; PIEROBON, V. M.; LAVRES, J. |
Afiliação: |
JOAQUIM JOSÉ FRAZÃO, USP/CENA; VINICIUS DE MELO BENITES, CNPS; JOÃO VICTOR SCHIAVON RIBEIRO, USP/ESALQ; VITOR MATEUS PIEROBON, USP/ESALQ; JOSÉ LAVRES, USP/CENA. |
Título: |
Agronomic effectiveness of a granular poultry litter-derived organomineral phosphate fertilizer in tropical soils: soil phosphorus fractionation and plant responses. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Geoderma, v. 337, p. 582-593, Mar. 2019. |
DOI: |
10.1016/j.geoderma.2018.10.003 |
Idioma: |
Inglês |
Conteúdo: |
Production of organomineral phosphate fertilizers (OMF) from poultry litter (PL) has been suggested to reduce the dependence on phosphorus (P) reserves. Here, we compared a granular PL-derived OMF to triple superphosphate (TSP) in two contrasting tropical soils (Oxisol and Entisol) by using isotope dilution with 32P. Our study aimed to gain insight into soil P fractionation, and P availability to maize plants achieved by P fertilization (0, 25, 50, 75 and 100 mg kg-1 of soil), in order to investigate the agronomic effectiveness of OMF. Despite u-XRF maps revealing that the mixture of PL and TSP as OMF resulted in P hot spots disseminated in a lowconcentration background, whereas for the TSP treatment higher P concentration was uniformly distributed in the granules, there was no difference in maize yield and fertilizer P recovery (%R) between P sources in both soils. In the Oxisol, there was no difference between fertilizers in any of the soil P pools, but larger readily phytoavailable P and smaller moderately labile P fractions were obtained with OMF. In the Entisol, the labile P pool was larger with TSP. Nevertheless, acid and alkaline phosphatase activity and microbial biomass were affected by P rate and P source. The results show that OMF is an effective substitute for conventional phosphate fertilizers, since OMF promotes P recovery, plant P uptake and biomass yields compared to those obtained with TSP. |
Palavras-Chave: |
Fertilizante de liberação lenta; Fração de fósforo no solo. |
Thesagro: |
Diluição Isotópica; Oxisol; Zea Mays. |
Thesaurus Nal: |
Entisols; Oxisols. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02292naa a2200265 a 4500 001 2100683 005 2019-04-17 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1016/j.geoderma.2018.10.003$2DOI 100 1 $aFRAZÃO, J. J. 245 $aAgronomic effectiveness of a granular poultry litter-derived organomineral phosphate fertilizer in tropical soils$bsoil phosphorus fractionation and plant responses.$h[electronic resource] 260 $c2019 520 $aProduction of organomineral phosphate fertilizers (OMF) from poultry litter (PL) has been suggested to reduce the dependence on phosphorus (P) reserves. Here, we compared a granular PL-derived OMF to triple superphosphate (TSP) in two contrasting tropical soils (Oxisol and Entisol) by using isotope dilution with 32P. Our study aimed to gain insight into soil P fractionation, and P availability to maize plants achieved by P fertilization (0, 25, 50, 75 and 100 mg kg-1 of soil), in order to investigate the agronomic effectiveness of OMF. Despite u-XRF maps revealing that the mixture of PL and TSP as OMF resulted in P hot spots disseminated in a lowconcentration background, whereas for the TSP treatment higher P concentration was uniformly distributed in the granules, there was no difference in maize yield and fertilizer P recovery (%R) between P sources in both soils. In the Oxisol, there was no difference between fertilizers in any of the soil P pools, but larger readily phytoavailable P and smaller moderately labile P fractions were obtained with OMF. In the Entisol, the labile P pool was larger with TSP. Nevertheless, acid and alkaline phosphatase activity and microbial biomass were affected by P rate and P source. The results show that OMF is an effective substitute for conventional phosphate fertilizers, since OMF promotes P recovery, plant P uptake and biomass yields compared to those obtained with TSP. 650 $aEntisols 650 $aOxisols 650 $aDiluição Isotópica 650 $aOxisol 650 $aZea Mays 653 $aFertilizante de liberação lenta 653 $aFração de fósforo no solo 700 1 $aBENITES, V. de M. 700 1 $aRIBEIRO, J. V. S. 700 1 $aPIEROBON, V. M. 700 1 $aLAVRES, J. 773 $tGeoderma$gv. 337, p. 582-593, Mar. 2019.
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Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
22/12/2017 |
Data da última atualização: |
26/12/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
C - 0 |
Autoria: |
ALMEIDA, H. C. G.; MACIEL, E. da S.; QUARESMA, F. R. P.; FREITAS, A. A. |
Afiliação: |
HELLEN CHRISTINA DE ALMEIDA KATO, CNPASA; E. DA SILVA MACIEL, UNIVERSIDADE FEDERAL DO TOCANTINS; F. R. P. QUARESMA, UNIVERSIDADE FEDERAL DO TOCANTINS; ALEXANDRE AIRES DE FREITAS, CNPASA. |
Título: |
Acceptance of dishes based on mechanically separated meat of tambaqui (Colossoma macropomum) in a public school, Brazil. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Food Science and Nutrition Technology, v. 2, n. 1, p. 1-8, 2017. |
ISSN: |
2574-2701 |
Idioma: |
Inglês |
Conteúdo: |
In Brazil, due to economic and social factors, public policies are needed to grant access to quality nutrition in school. This provision should respect the local food culture; however, in the North, the region with the highest production of inland fisheries, fish consumption among students is still very low. The aim of the present study is to characterize Tambaqui (Colossoma macropomum) MSM, suggest planned school dishes based on this MSM and assesses their acceptability among students at the elementary and high school levels in northern Brazil. The study was carried out over one month and was a quantitative (hedonic scale and leftover/intake index) and qualitative research about preference. The participants were 120 elementary- and high-school students chosen randomly after they were authorized by their parents or legal guardians. Fish-based dishes were inserted in the diet of schoolchildren and their acceptability was evaluated. The children were also inquired about their fish consumption routines. The statistical analyses used were frequency tables and chi-squared independence test associated with Fisher?s exact test. Two dishes were well accepted by the students; however, the results showed that fish acceptance among younger students are higher than among adolescents. So, policies that promote fish intake and a healthy lifestyle must be stimulated since the early grades. |
Palavras-Chave: |
Escola pública. |
Thesagro: |
Peixe de água doce; Programa de nutrição; Tambaqui. |
Thesaurus NAL: |
Fish; Food and nutrition programs; Health services; Public schools. |
Categoria do assunto: |
Q Alimentos e Nutrição Humana |
URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1083365/1/CNPASA2017fsnt.pdf
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Marc: |
LEADER 02217naa a2200265 a 4500 001 2083365 005 2017-12-26 008 2017 bl uuuu u00u1 u #d 022 $a2574-2701 100 1 $aALMEIDA, H. C. G. 245 $aAcceptance of dishes based on mechanically separated meat of tambaqui (Colossoma macropomum) in a public school, Brazil.$h[electronic resource] 260 $c2017 520 $aIn Brazil, due to economic and social factors, public policies are needed to grant access to quality nutrition in school. This provision should respect the local food culture; however, in the North, the region with the highest production of inland fisheries, fish consumption among students is still very low. The aim of the present study is to characterize Tambaqui (Colossoma macropomum) MSM, suggest planned school dishes based on this MSM and assesses their acceptability among students at the elementary and high school levels in northern Brazil. The study was carried out over one month and was a quantitative (hedonic scale and leftover/intake index) and qualitative research about preference. The participants were 120 elementary- and high-school students chosen randomly after they were authorized by their parents or legal guardians. Fish-based dishes were inserted in the diet of schoolchildren and their acceptability was evaluated. The children were also inquired about their fish consumption routines. The statistical analyses used were frequency tables and chi-squared independence test associated with Fisher?s exact test. Two dishes were well accepted by the students; however, the results showed that fish acceptance among younger students are higher than among adolescents. So, policies that promote fish intake and a healthy lifestyle must be stimulated since the early grades. 650 $aFish 650 $aFood and nutrition programs 650 $aHealth services 650 $aPublic schools 650 $aPeixe de água doce 650 $aPrograma de nutrição 650 $aTambaqui 653 $aEscola pública 700 1 $aMACIEL, E. da S. 700 1 $aQUARESMA, F. R. P. 700 1 $aFREITAS, A. A. 773 $tFood Science and Nutrition Technology$gv. 2, n. 1, p. 1-8, 2017.
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