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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
29/10/2015 |
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Data da última atualização: |
29/10/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
INACIO, C. de T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. |
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Afiliação: |
CAIO DE TEVES INACIO, CNPS; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; PHILLIP M. CHALK; UFRRJ; UFRRJ. |
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Título: |
Identifying N fertilizer regime and vegetable production system in tropical Brazil using 15 N natural abundance. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of the Science of Food and Agriculture, London, UK, v. 95, p. 3025-3032, 2015. |
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DOI: |
10.1002/jsfa.7177 |
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Idioma: |
Português |
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Conteúdo: |
This study was conducted in areas of vegetable production in tropical Brazil, with the objectives of (i) measuring the variation in ?15?N in soils, organic N fertilizer sources and lettuce (Lactuca sativa L.) from different farming systems, (ii) measuring whether plant ?15?N can differentiate organic versus conventional lettuce and (iii) identifying the factors affecting lettuce ?15?N.
RESULTS. Samples of soil, lettuce and organic inputs were taken from two organic, one conventional and one hydroponic farm. The two organic farms had different N-sources with ?15?N values ranging from 0.0 to +14.9? (e.g. leguminous green manure and animal manure compost, respectively), and differed significantly (P < 0.05) in lettuce ?15?N (+9.2?±?1.1? and +14.3?±?1.0?). Conventional lettuce ?15?N (+8.5?±?2.7?) differed from hydroponic lettuce ?15?N (+4.5?±?0.2?) due to manure inputs. The N from leguminous green manure made a small contribution to the N nutrition of lettuce in the multi-N-source organic farm.
CONCLUSION: To differentiate organic versus conventional farms using ?15?N the several subsets of mode of fertilization should be considered. Comparisons of ?15?N of soil, organic inputs and lettuce allowed a qualitative analysis of the relative importance of different N inputs. © 2015 Society of Chemical Industry |
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Palavras-Chave: |
Analytical method; Organic Hydroponics; Pesticide residue. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02016naa a2200217 a 4500
001 2027543
005 2015-10-29
008 2015 bl --- 0-- u #d
024 7 $a10.1002/jsfa.7177$2DOI
100 1 $aINACIO, C. de T.
245 $aIdentifying N fertilizer regime and vegetable production system in tropical Brazil using 15 N natural abundance.
260 $c2015
520 $aThis study was conducted in areas of vegetable production in tropical Brazil, with the objectives of (i) measuring the variation in ?15?N in soils, organic N fertilizer sources and lettuce (Lactuca sativa L.) from different farming systems, (ii) measuring whether plant ?15?N can differentiate organic versus conventional lettuce and (iii) identifying the factors affecting lettuce ?15?N. RESULTS. Samples of soil, lettuce and organic inputs were taken from two organic, one conventional and one hydroponic farm. The two organic farms had different N-sources with ?15?N values ranging from 0.0 to +14.9? (e.g. leguminous green manure and animal manure compost, respectively), and differed significantly (P < 0.05) in lettuce ?15?N (+9.2?±?1.1? and +14.3?±?1.0?). Conventional lettuce ?15?N (+8.5?±?2.7?) differed from hydroponic lettuce ?15?N (+4.5?±?0.2?) due to manure inputs. The N from leguminous green manure made a small contribution to the N nutrition of lettuce in the multi-N-source organic farm. CONCLUSION: To differentiate organic versus conventional farms using ?15?N the several subsets of mode of fertilization should be considered. Comparisons of ?15?N of soil, organic inputs and lettuce allowed a qualitative analysis of the relative importance of different N inputs. © 2015 Society of Chemical Industry
653 $aAnalytical method
653 $aOrganic Hydroponics
653 $aPesticide residue
700 1 $aURQUIAGA, S.
700 1 $aCHALK, P. M.
700 1 $aMATA, M. G. F.
700 1 $aSOUZA, P. O.
773 $tJournal of the Science of Food and Agriculture, London, UK$gv. 95, p. 3025-3032, 2015.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
27/08/2004 |
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Data da última atualização: |
14/11/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LEAO, P. C. de S.; SILVA, D. J.; SILVA, E. E. G. da. |
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Afiliação: |
PATRICIA COELHO DE SOUZA LEAO, CPATSA; DAVI JOSE SILVA, CPATSA. |
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Título: |
Effects of gibberelic acid, crop-set and girdling on the quality of bunches of table grape cv. Catalunha in São Francisco river Valley. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: SEMANA INTERNACIONAL DA FRUTICULTURA, FLORICULTURA E AGROINDÚSTRIA, 11.; INTERNATIONAL WEEK OF FRUIT CROP, FLORICULTURE AND AGROINDUSTRY, 11.; INTERNATIONAL SYMPOSIUM ON TROPICAL AND SUBTROPICAL FRUITS, 3.; SIMPÓSIO INTERNACIONAL DE FRUTAS TROPICAIS E SUBTROPICAIS, 3., 2004, Fortaleza. Frutal 2004: programa and abstracts. Fortaleza: Instituto FRUTAL: HPP, 2004. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
The present research was aimed to evaluate the effects of the gibberellic acid, bio-stimulant Crop-Set and girdling applied during bloom and post-bloom stage to improve yield and quality of the marketable bunches of the seedless grape cv. |
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Palavras-Chave: |
Anelamento; Bioestimulante; Qualidade do cacho; Uva sem sementes; Vale do São Francisco. |
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Thesagro: |
Ácido Giberélico; Produção; Uva; Variedade. |
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Thesaurus NAL: |
Grapes. |
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Categoria do assunto: |
A Sistemas de Cultivo
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/30024/1/OPB609.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/153832/1/Effects-of-gibberelic-acid-crop-set-and-girdling-on-the-quality-of-bunches-of-table-grape.pdf
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Marc: |
LEADER 01335nam a2200265 a 4500
001 1154346
005 2023-11-14
008 2004 bl uuuu u00u1 u #d
100 1 $aLEAO, P. C. de S.
245 $aEffects of gibberelic acid, crop-set and girdling on the quality of bunches of table grape cv. Catalunha in São Francisco river Valley.
260 $aIn: SEMANA INTERNACIONAL DA FRUTICULTURA, FLORICULTURA E AGROINDÚSTRIA, 11.; INTERNATIONAL WEEK OF FRUIT CROP, FLORICULTURE AND AGROINDUSTRY, 11.; INTERNATIONAL SYMPOSIUM ON TROPICAL AND SUBTROPICAL FRUITS, 3.; SIMPÓSIO INTERNACIONAL DE FRUTAS TROPICAIS E SUBTROPICAIS, 3., 2004, Fortaleza. Frutal 2004: programa and abstracts. Fortaleza: Instituto FRUTAL: HPP$c2004
300 $c1 CD-ROM.
520 $aThe present research was aimed to evaluate the effects of the gibberellic acid, bio-stimulant Crop-Set and girdling applied during bloom and post-bloom stage to improve yield and quality of the marketable bunches of the seedless grape cv.
650 $aGrapes
650 $aÁcido Giberélico
650 $aProdução
650 $aUva
650 $aVariedade
653 $aAnelamento
653 $aBioestimulante
653 $aQualidade do cacho
653 $aUva sem sementes
653 $aVale do São Francisco
700 1 $aSILVA, D. J.
700 1 $aSILVA, E. E. G. da
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Embrapa Semiárido (CPATSA) |
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