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| Registros recuperados : 14 | |
| 5. |  | JONSSON, C. M.; FERNANDES, C. M. T.; DOMINGOS, N.; AOYAMA, H. In vitro effects of agriculture pollutants and their joint action on selenastrum capricornutum acid phosphatase. In: CONGRESSO BRASILEIRO DE ECOTOXICOLOGIA, 9., 2006, São Pedro, SP. Comunicações orais... São Pedro, SP: ECOTOX, 2006.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 6. | | BELLETTINI, S.; MIEKO, N.; BELLETTINI, T.; WEBER, L. F.; FERNANDES, C. M.; CARNAÚBA, G. A.; CORREIA, D. M. C. Inseticidas no controle do Bicudo do algodoeiro Anthonomus grandis Boheman, 1843 In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Resumos... Uberlândia, 2007. p.1-4 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
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| 7. | | BELLETTINI, S.; MIEKO, N.; BELLETTINI, T.; NISHIMURA, M.; FERNANDES, C. M.; CARNAÚBA, G. A.; CORREIA, D. M. C. Avaliação de inseticidas no controle do bicudo do algodoeiro Anthonomus grandis Boheman,1843. In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Resumos... Uberlândia, 2007. p. 1-4 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
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| 8. | | JONSSON, C. M.; DOMINGOS, N.; FERNANDES, C. M. T.; SILVA, T. L.; LEITE, L. C.; AOYAMA, H. Inhibition of Selenastrum capricornutum acid phosphatase by sewage sludge contaminants and in vivo kinetic studies with mercury and las. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 34., 2004, Caxambu/MG. Programa e resumos. Caxambu/MG: SBBq, 2005.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 12. | | MIRANDA, F. R. de; MESQUITA, A. L. M.; MARTINS, M. V. V.; ARAGÃO, F. A. S. de; FERNANDES, C. M. F. Evaluation of a control system based on the Irrigas® sensor for irrigation scheduling of hydroponic tomato in Ceará, Brazil. In: INTERNATIONAL SYMPOSIUM ON IRRIGATION OF HORTICULTURAL CROPS, 6., 2009, Viña del Mar. Book of Abstracts. Talca: Universidade de Talca, 2009. p. 140.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 14. | | MESQUITA, A. L. M.; SILVA, J. S. da; MIRANDA, F. R. de; FERNANDES, C. M. F.; MARTINS, M. V. V.; MOTA, M. do S. C. de S. Impacto do manejo integrado de pragas na redução do uso de agrotóxico em cultivo protegido do tomateiro na serra da Ibiapaba. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Resumos... Natal: Sociedade Entomológica do Brasil, 2010. 1 CD-ROM.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 14 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
20/09/2011 |
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Data da última atualização: |
16/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
MIRANDA, F. R. de; MESQUITA, A. L. M.; MARTINS, M. V. V.; ARAGAO, F. A. S. de; FERNANDES, C. M. F. |
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Afiliação: |
FABIO RODRIGUES DE MIRANDA, CNPAT; ANTONIO LINDEMBERG MARTINS MESQUITA, CNPAT; MARLON VAGNER VALENTIM MARTINS, CNPAT; FERNANDO ANTONIO SOUZA DE ARAGAO, CNPAT. |
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Título: |
Evaluation of a control system based on the Irrigas® Sensor for irrigation scheduling of hydroponic tomato in Ceará, Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Acta Horticulturae, v. 889, p. 431-438, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
The study aimed to evaluate two irrigation scheduling techniques for hydroponic tomato production in Ceará, northeastern Brazil. The experiment was set up as a split-plot randomized block design, with six replications. As main factor, two irrigation scheduling techniques were tested: (a) Automatic scheduling using matric sensors, a closed loop irrigation control system based on the Irrigas® sensor, was used to start irrigation whenever matric potential in the substrate reached -4 kPa. (b) Time clock scheduling - irrigation applications were programmed at fixed intervals and rates, according to drainage fraction observed on the previous day and water retention capacity of the substrate. Tomato hybrids ?Miramar? and ?Ellen? were evaluated in the subplots. The growing medium was coconut fiber in bags of 40 L. The automatic irrigation scheduling based on Irrigas® sensors did not affect significantly the tomato marketable yield, fruit weight, and number of fruits per plant (p>0.05) as compared to time clock scheduling. The automatic irrigation control reduced water application by 6.3% as compared to time clock scheduling, without affecting pH and EC levels of the drainage solution. The tomato hybrid ?Miramar? presented significantly higher (p<0.01) marketable yield and number of fruits per plant than hybrid ?Ellen?, which presented higher fruit weight. |
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Palavras-Chave: |
Greenhouse; Irrigation control; Matric potential. |
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Thesagro: |
Lycopersicon Esculentum. |
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Thesaurus NAL: |
soilless culture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02084naa a2200229 a 4500
001 1900986
005 2018-10-16
008 2011 bl uuuu u00u1 u #d
100 1 $aMIRANDA, F. R. de
245 $aEvaluation of a control system based on the Irrigas® Sensor for irrigation scheduling of hydroponic tomato in Ceará, Brazil.
260 $c2011
520 $aThe study aimed to evaluate two irrigation scheduling techniques for hydroponic tomato production in Ceará, northeastern Brazil. The experiment was set up as a split-plot randomized block design, with six replications. As main factor, two irrigation scheduling techniques were tested: (a) Automatic scheduling using matric sensors, a closed loop irrigation control system based on the Irrigas® sensor, was used to start irrigation whenever matric potential in the substrate reached -4 kPa. (b) Time clock scheduling - irrigation applications were programmed at fixed intervals and rates, according to drainage fraction observed on the previous day and water retention capacity of the substrate. Tomato hybrids ?Miramar? and ?Ellen? were evaluated in the subplots. The growing medium was coconut fiber in bags of 40 L. The automatic irrigation scheduling based on Irrigas® sensors did not affect significantly the tomato marketable yield, fruit weight, and number of fruits per plant (p>0.05) as compared to time clock scheduling. The automatic irrigation control reduced water application by 6.3% as compared to time clock scheduling, without affecting pH and EC levels of the drainage solution. The tomato hybrid ?Miramar? presented significantly higher (p<0.01) marketable yield and number of fruits per plant than hybrid ?Ellen?, which presented higher fruit weight.
650 $asoilless culture
650 $aLycopersicon Esculentum
653 $aGreenhouse
653 $aIrrigation control
653 $aMatric potential
700 1 $aMESQUITA, A. L. M.
700 1 $aMARTINS, M. V. V.
700 1 $aARAGAO, F. A. S. de
700 1 $aFERNANDES, C. M. F.
773 $tActa Horticulturae$gv. 889, p. 431-438, 2011.
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