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| 6. |  | BATISTA, K.; MONTEIRO, F. A. Variações nos teores de potássio, cálcio e magnésio em capim-marandu adubado com doses de nitrogênio e enxofre. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 34, n. 1, p. 151-161, jan./fev. 2010. Título em Inglês: Auterations in potassium, calcium and manesium concentrations in marandu palisadegrass fertilized with nitrogem and sulfur rates.| Biblioteca(s): Embrapa Solos / UEP-Recife. |
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| 16. | | SANTOS, A. R. dos; CORREA, B. D.; MONTEIRO, F. A. Efeitos de niveis de nitrogênio sobre o rendimento de matéria seca, teor de nitrogênio e perfilhamento em Panicum maximum cultivar vencedor. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.2, p. 741-742.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| Registros recuperados : 51 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
06/01/2006 |
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Data da última atualização: |
13/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SILVEIRA, C. P.; NACHTIGALL, G. R.; MONTEIRO, F. A. |
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Afiliação: |
GILMAR RIBEIRO NACHTIGALL, CNPUV. |
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Título: |
Norms for the diagnosis and recommendation integrated system for signal grass. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 62, n. 6, p. 513-519, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: The Diagnosis and Recommendation Integrated System (DRIS) has been proved efficient as a method for nutritional diagnosis in several crops. However there is a lack of information on the use of DRIS for tropical forage grass. The aim of this paper was to establish norms for interpretation of results of analysis from recently expanded leaf laminae of Brachiaria decumbens Stapf. (Signal grass), through the DRIS method. To establish DRIS norms, concentrations of N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn and the relative production obtained in six experiments conducted in greenhouse using nutrient solution and silica as substrate were considered. DRIS indices were calculated using two criteria in order to choose the ratio order of nutrients: F value - ratio of variance for the relationships among nutrients between the reference group and the low productivity group; and R value - correlation coefficients between the productivity values and the relationship among the pairs of nutrients, and three forms of calculation for the functions of nutrients (methods of Beaufils, of Jones, and of Elwali & Gascho). The two criteria to choose the ratio order of nutrients selected different ratios between pairs of nutrients; the nutrient concentrations were positively and significantly correlated with the respective DRIS indices, except for N; and DRIS norms are useful for the nutritional diagnosis of the ten studied nutrients in leaf laminae of Signal grass. Key words: Brachiaria decumbens, DRIS norms, foliar diagnosis MenosABSTRACT: The Diagnosis and Recommendation Integrated System (DRIS) has been proved efficient as a method for nutritional diagnosis in several crops. However there is a lack of information on the use of DRIS for tropical forage grass. The aim of this paper was to establish norms for interpretation of results of analysis from recently expanded leaf laminae of Brachiaria decumbens Stapf. (Signal grass), through the DRIS method. To establish DRIS norms, concentrations of N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn and the relative production obtained in six experiments conducted in greenhouse using nutrient solution and silica as substrate were considered. DRIS indices were calculated using two criteria in order to choose the ratio order of nutrients: F value - ratio of variance for the relationships among nutrients between the reference group and the low productivity group; and R value - correlation coefficients between the productivity values and the relationship among the pairs of nutrients, and three forms of calculation for the functions of nutrients (methods of Beaufils, of Jones, and of Elwali & Gascho). The two criteria to choose the ratio order of nutrients selected different ratios between pairs of nutrients; the nutrient concentrations were positively and significantly correlated with the respective DRIS indices, except for N; and DRIS norms are useful for the nutritional diagnosis of the ten studied nutrients in leaf laminae of Signal grass. Key words: Brachiaria decumbe... Mostrar Tudo |
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Palavras-Chave: |
Capim-braquiária; Diagnóstico nutricional; DRIS; Forrageira. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195822/1/a01v62n6.pdf
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Marc: |
LEADER 02108naa a2200193 a 4500
001 1540863
005 2019-04-13
008 2005 bl uuuu u00u1 u #d
100 1 $aSILVEIRA, C. P.
245 $aNorms for the diagnosis and recommendation integrated system for signal grass.$h[electronic resource]
260 $c2005
520 $aABSTRACT: The Diagnosis and Recommendation Integrated System (DRIS) has been proved efficient as a method for nutritional diagnosis in several crops. However there is a lack of information on the use of DRIS for tropical forage grass. The aim of this paper was to establish norms for interpretation of results of analysis from recently expanded leaf laminae of Brachiaria decumbens Stapf. (Signal grass), through the DRIS method. To establish DRIS norms, concentrations of N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn and the relative production obtained in six experiments conducted in greenhouse using nutrient solution and silica as substrate were considered. DRIS indices were calculated using two criteria in order to choose the ratio order of nutrients: F value - ratio of variance for the relationships among nutrients between the reference group and the low productivity group; and R value - correlation coefficients between the productivity values and the relationship among the pairs of nutrients, and three forms of calculation for the functions of nutrients (methods of Beaufils, of Jones, and of Elwali & Gascho). The two criteria to choose the ratio order of nutrients selected different ratios between pairs of nutrients; the nutrient concentrations were positively and significantly correlated with the respective DRIS indices, except for N; and DRIS norms are useful for the nutritional diagnosis of the ten studied nutrients in leaf laminae of Signal grass. Key words: Brachiaria decumbens, DRIS norms, foliar diagnosis
653 $aCapim-braquiária
653 $aDiagnóstico nutricional
653 $aDRIS
653 $aForrageira
700 1 $aNACHTIGALL, G. R.
700 1 $aMONTEIRO, F. A.
773 $tScientia Agricola, Piracicaba$gv. 62, n. 6, p. 513-519, 2005.
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