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Biblioteca(s):  Embrapa Solos.
Data corrente:  08/07/2019
Data da última atualização:  08/11/2019
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  PESSOA, L. G. M.; FREIRE, M. B. G. dos S.; ARAUJO FILHO, J. C. de; SANTOS, P. R. dos; MIRANDA, M. F. A.; FREIRE, F. J.
Afiliação:  LUIZ GUILHERME MEDEIROS PESSOA, UFRPE; MARIA BETÂNIA GALVÃO DOS SANTOS FREIRE, UFRPE; JOSE COELHO DE ARAUJO FILHO, CNPS; PATRÍCIA RIBEIROS DOS SANTOS, IFPE; MÁRCIO FLÉQUISSON ALVES MIRANDA, IFPE; FERNANDO JOSÉ FREIRE, UFRPE.
Título:  Characterization and classification of halomorphic soils in the semiarid region of Northeastern Brazil.
Ano de publicação:  2019
Fonte/Imprenta:  Journal of Agricultural Science, v. 11, n. 4, p. 405-418, 2019.
DOI:  10.5539/jas.v11n4p405
Idioma:  Inglês
Conteúdo:  The properties of halomorphic soils are controlled by the presence of either soluble salts, exchangeable sodium or both, and it is important to know and understand these properties in order to reforest and/or recover the soils. The objective of this study was to characterize and classify halomorphic soils from the semiarid region of Northeast Brazil. Four profiles of halomorphic soils were studied, which were described morphologically and the samples were collected from all soil horizons. Physical and chemical analyzes of the soils were carried out for classification purposes, as well as geochemical speciation of the soluble salts. According to the results, P1 and P3 were classified as Fluvisols, and P2 and P4 as Cambisols. It was observed that the studied soil profiles have the predominance of fine particles, which prevents the leaching and subsequent removal of salts from the soil profile. Soils presented high levels of exchangeable sodium, characterizing them as sodium solids throughout the profile. Ionic speciation analysis indicated the predominance of free forms of Ca2+, Mg2+, Na+ and K+, HCO3-, Cl- and SO42- and combinations of calcium, magnesium and sodium chloride and sulfate salts. Thus, it was possible to conclude that the studied halomorphic soils presented high levels of degradation by salts and sodium and that these types of soils are strongly related to the Fluvisols and Cambisols.
Thesagro:  Solo Salino; Solo Sódico.
Thesaurus Nal:  Saline soils; Sodic soils; Soil degradation.
Categoria do assunto:  P Recursos Naturais, Ciências Ambientais e da Terra
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199272/1/2019-026.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Solos (CNPS)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPS20167 - 1UPCAP - DD2019.00085
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Biblioteca(s):  Embrapa Pecuária Sudeste.
Data corrente:  03/12/2020
Data da última atualização:  03/12/2020
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  B - 1
Autoria:  GARCIA, A. R.; BARROS, D. V.; OLIVEIRA JUNIOR, M. C. M. de; BARIONI JUNIOR, W.; SILVA, J. A. R. da; LOURENÇO JUNIOR, J. de B.; PESSOA, J. dos S.
Afiliação:  ALEXANDRE ROSSETTO GARCIA, CPPSE; Daniel Vale Barros, UFPA; MOISES CORDEIRO MOURAO DE O JUNIOR, CPATU; WALDOMIRO BARIONI JUNIOR, CPPSE; Jamile Andréa Rodrigues da Silva, UFRA; José de Brito Lourenço Junior, UFPA; Jakeline dos Santos Pessoa, UFRA.
Título:  Innovative use and efficiency test of subcutaneous transponders for electronic identification of water buffaloes.
Ano de publicação:  2020
Fonte/Imprenta:  Tropical Animal Health and Production, v. 52, p. 3725-3733, nov. 2020.
DOI:  https://doi.org/10.1007/s11250-020-02410-7
Idioma:  Inglês
Conteúdo:  The objective of this study was to evaluate the viability of using transponders for the electronic identification of water buffaloes and compare their efficiency when used in animals of different age groups. Electronic transponders with RFID technology (2.1 × 12.2 mm) were implanted subcutaneously (D0) in the scutiform cartilage. The animals consisted of four groups: CLF-I (17 calves; 2.1 ± 1.9 months), CLF-II (20 calves; 5.1 ± 3.2 months), HFR (20 heifers; 22 ± 4.7 months) and STR (19 steers; 26.6 ± 6.7 months). The animals were kept under pasture grazing, a part of the year in the dryland and a part in the floodplain, and were monitored for up to 350 days. The average time required for individual transponder implant was 49.46 s, while the time required for reading the code was 3.76 s. The older calves required higher time for individual implant (P = 0.0001) and closer approximation of the reader in the D150 (P = 0.0001). The mean read distance was 2.98 cm in D0 and 1.94 cm in D150. The magnitude of the subcutaneous transponder migration was minimal, and was within an area of 17.2 mm2. A slight bleeding was observed in 15.79% of the animals during the implant. A decreasing incidence of edema was observed until D21, with the heifers being more sensitive until that time (P = 0.0099). Considering the results, it is preferred to implant electronic transponders in calves up to two months of age. The physical rate of transponder loss was 1.3% and the loss of functionality was 9.2... Mostrar Tudo
Palavras-Chave:  Microchip; RFID.
Thesagro:  Bubalus Bubalis.
Thesaurus NAL:  Food safety; Traceability.
Categoria do assunto:  G Melhoramento Genético
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218670/1/InnovativeUseEfficiency.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Pecuária Sudeste (CPPSE)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPPSE25187 - 1UPCAP - DDPROCI-2020.00100GAR2020.00151
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