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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:  Mostrar Marc Completo
Registro original:  Embrapa Solos (CNPS)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPS20028 - 1UPCAP - DD2018.00317
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Registro Completo

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
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Pesca e Aquicultura (CNPASA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPASA614 - 1UPCAP - DDCNPASA_AP762017.076
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