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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
04/07/2019 |
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Data da última atualização: |
04/07/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AVELINO, A. C. D.; FARIA, D. A. de; CABRAL, C. E. A.; ABREU, J. G. de; CAMILI, E. C.; SALES, K. C.; BUNGENSTAB, D. J. |
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Afiliação: |
Anne Caroline Dallabrida Avelino, Universidade Federal de Mato Grosso - UFMT/Faculdade de Agronomia e Zootecnia; Dayana Aparecida de Faria, Universidade Federal de Mato Grosso - UFMT/Faculdade de Agronomia e Zootecnia; Carlos Eduardo Avelino Cabral, Universidade Federal de Rondonópolis - UFR/Instituto de Ciências Agrárias e Tecnologia; Joadil Gonçalves de Abreu, Universidade Federal de Mato Grosso - UFMT/Faculdade de Agronomia e Zootecnia; Elisangela Clarete Camili, Universidade Federal de Mato Grosso - UFMT/Faculdade de Agronomia e Zootecnia; Kyron Cabral Sales, Universidade Federal de Mato Grosso - UFMT/Faculdade de Agronomia e Zootecnia; DAVI JOSE BUNGENSTAB, CNPGC. |
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Título: |
Maximum contact Ttime of "Piatã Grass" Brachiaria brizantha (Poaceae) seeds with fertilizer for germination. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Experimental Agriculture International, v. 35, n. 1, p. 1-9, 2019 |
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Idioma: |
Inglês |
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Conteúdo: |
Data regarding the mixing of palisade grass seeds with fertilizers are scarce and contradictory. The aim of this study was to evaluate the maximum contact time without significant damage on physiological quality of Piatã grass seeds when mixed with 05:25:15 NPK fertilizer. The experiment was conducted in a completely randomized design with six treatments and four replications. Treatments consisted of six contact times of the seeds with the fertilizer: 0, 24, 48, 72, 96 and 120 hours. The variables following variables were evaluated: water content, germination percentage, first germination count, seed viability, eletrical conductivity, accelerated aging, emergence percentage and emergence speed index. Except for the water content, there was an effect of the fertilizer contact times with the seeds over all variables. There was a decreasing linear effect of the contact time of the seeds with the fertilizer for all variables, except for electrical conductivity. The average water content of 10.09% was observed. After 120 hours of the fertilizer/seeds mixture, a reduction of 36.4% was observed in germination, of 36.7% in the first germination count, of 25.0% in seed viability, and of 65.0% in the germination of seeds subjected to the accelerated aging. There was an increase of 170.0% in the electrical conductivity of the Piatã grass seeds. The minimum standard of 60% germination, viability or emergence, required for the commercialization of forage seeds, should be maintained to ensure the ideal forage population in the establishment of the crop. Based on the emergence and viability tests, the commercialization levels can be maintained by performing the fertilizer/seeds mixture up to 63 hours before sowing. After 63 hours of seed and fertilizer mixing, a reduction of the initial vigor of the seeds can be observed, although not compromising the crop establishment or causing degradation of soil. Therefore, Piatã grass seeds can be mixed with the 05:25:15 NPK fertilizer up to 63 hours before sowing. MenosData regarding the mixing of palisade grass seeds with fertilizers are scarce and contradictory. The aim of this study was to evaluate the maximum contact time without significant damage on physiological quality of Piatã grass seeds when mixed with 05:25:15 NPK fertilizer. The experiment was conducted in a completely randomized design with six treatments and four replications. Treatments consisted of six contact times of the seeds with the fertilizer: 0, 24, 48, 72, 96 and 120 hours. The variables following variables were evaluated: water content, germination percentage, first germination count, seed viability, eletrical conductivity, accelerated aging, emergence percentage and emergence speed index. Except for the water content, there was an effect of the fertilizer contact times with the seeds over all variables. There was a decreasing linear effect of the contact time of the seeds with the fertilizer for all variables, except for electrical conductivity. The average water content of 10.09% was observed. After 120 hours of the fertilizer/seeds mixture, a reduction of 36.4% was observed in germination, of 36.7% in the first germination count, of 25.0% in seed viability, and of 65.0% in the germination of seeds subjected to the accelerated aging. There was an increase of 170.0% in the electrical conductivity of the Piatã grass seeds. The minimum standard of 60% germination, viability or emergence, required for the commercialization of forage seeds, should be maintained to en... Mostrar Tudo |
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Palavras-Chave: |
Grass seeds. |
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Thesaurus Nal: |
Germination; NPK fertilizers. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199174/1/Maximum-contact-time-of-Piata.pdf
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Marc: |
LEADER 02741naa a2200229 a 4500
001 2110380
005 2019-07-04
008 2019 bl uuuu u00u1 u #d
100 1 $aAVELINO, A. C. D.
245 $aMaximum contact Ttime of "Piatã Grass" Brachiaria brizantha (Poaceae) seeds with fertilizer for germination.$h[electronic resource]
260 $c2019
520 $aData regarding the mixing of palisade grass seeds with fertilizers are scarce and contradictory. The aim of this study was to evaluate the maximum contact time without significant damage on physiological quality of Piatã grass seeds when mixed with 05:25:15 NPK fertilizer. The experiment was conducted in a completely randomized design with six treatments and four replications. Treatments consisted of six contact times of the seeds with the fertilizer: 0, 24, 48, 72, 96 and 120 hours. The variables following variables were evaluated: water content, germination percentage, first germination count, seed viability, eletrical conductivity, accelerated aging, emergence percentage and emergence speed index. Except for the water content, there was an effect of the fertilizer contact times with the seeds over all variables. There was a decreasing linear effect of the contact time of the seeds with the fertilizer for all variables, except for electrical conductivity. The average water content of 10.09% was observed. After 120 hours of the fertilizer/seeds mixture, a reduction of 36.4% was observed in germination, of 36.7% in the first germination count, of 25.0% in seed viability, and of 65.0% in the germination of seeds subjected to the accelerated aging. There was an increase of 170.0% in the electrical conductivity of the Piatã grass seeds. The minimum standard of 60% germination, viability or emergence, required for the commercialization of forage seeds, should be maintained to ensure the ideal forage population in the establishment of the crop. Based on the emergence and viability tests, the commercialization levels can be maintained by performing the fertilizer/seeds mixture up to 63 hours before sowing. After 63 hours of seed and fertilizer mixing, a reduction of the initial vigor of the seeds can be observed, although not compromising the crop establishment or causing degradation of soil. Therefore, Piatã grass seeds can be mixed with the 05:25:15 NPK fertilizer up to 63 hours before sowing.
650 $aGermination
650 $aNPK fertilizers
653 $aGrass seeds
700 1 $aFARIA, D. A. de
700 1 $aCABRAL, C. E. A.
700 1 $aABREU, J. G. de
700 1 $aCAMILI, E. C.
700 1 $aSALES, K. C.
700 1 $aBUNGENSTAB, D. J.
773 $tJournal of Experimental Agriculture International$gv. 35, n. 1, p. 1-9, 2019
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
29/09/1998 |
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Data da última atualização: |
23/04/2021 |
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Autoria: |
AMORIN NETO, M. da S.; VILLA NOVA, N. A. |
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Afiliação: |
CPATSA. |
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Título: |
Novo sistema de medidas de evaporação para o tanque classe "A". |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 18, n. 7, p. 695-702, jul. 1983 |
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Idioma: |
Português |
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Notas: |
Título em inglês: A new evaporation measurement system for the class "A" pan. |
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Conteúdo: |
RESUMO - O presente trabalho trata do projeto de construção e análise de desempenho de um novo sistema de medida evaporométrica, que e acoplado a um tanque classe "A" padrão convencional, dando-se ao sistema o nome "Tanque Classe A modificado". A viabilidade do sistema foi testada contra medidas simultâneas com o sistema clássico (tanque classe "A" padrão e micrômetro), revelando, através de testes estatísticos, que o Tanque Classe A Modificado pode substituir com vantagens o sistema clássico, minimizando os erros de leitura - que são cometidos mesmo quando se dispõe de pessoal qualificado para esta operação - e permitindo também a realização de medidas evaporométricas com boa aproximação em dias de chuva.
ABSTRACT - The present work deals with design, construction and performance analysis of a new systern for evaporimetric measurements, which is coupled to a standard class A evaporation pan, and which is called "Modified Class A Pan". The viability of the system was checked against simultaneous rneasurements taken with the conventional system (standard class A pan plus micrometer depth gauge), indicating, from statistícal tests, that minimizing errors can be made even by qualified staff, and making it possible to carry out evaporimetric measurernents with good approximation on rainy days. |
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Thesagro: |
Clima; Climatologia; Evaporação; Evapotranspiração; Recurso Natural. |
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Thesaurus NAL: |
Climatology; Evapotranspiration; Natural resources. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02090naa a2200241 a 4500
001 1105016
005 2021-04-23
008 1983 bl uuuu u00u1 u #d
100 1 $aAMORIN NETO, M. da S.
245 $aNovo sistema de medidas de evaporação para o tanque classe "A".
260 $c1983
500 $aTítulo em inglês: A new evaporation measurement system for the class "A" pan.
520 $aRESUMO - O presente trabalho trata do projeto de construção e análise de desempenho de um novo sistema de medida evaporométrica, que e acoplado a um tanque classe "A" padrão convencional, dando-se ao sistema o nome "Tanque Classe A modificado". A viabilidade do sistema foi testada contra medidas simultâneas com o sistema clássico (tanque classe "A" padrão e micrômetro), revelando, através de testes estatísticos, que o Tanque Classe A Modificado pode substituir com vantagens o sistema clássico, minimizando os erros de leitura - que são cometidos mesmo quando se dispõe de pessoal qualificado para esta operação - e permitindo também a realização de medidas evaporométricas com boa aproximação em dias de chuva. ABSTRACT - The present work deals with design, construction and performance analysis of a new systern for evaporimetric measurements, which is coupled to a standard class A evaporation pan, and which is called "Modified Class A Pan". The viability of the system was checked against simultaneous rneasurements taken with the conventional system (standard class A pan plus micrometer depth gauge), indicating, from statistícal tests, that minimizing errors can be made even by qualified staff, and making it possible to carry out evaporimetric measurernents with good approximation on rainy days.
650 $aClimatology
650 $aEvapotranspiration
650 $aNatural resources
650 $aClima
650 $aClimatologia
650 $aEvaporação
650 $aEvapotranspiração
650 $aRecurso Natural
700 1 $aVILLA NOVA, N. A.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 18, n. 7, p. 695-702, jul. 1983
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