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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
25/07/2002 |
Data da última atualização: |
20/01/2021 |
Autoria: |
NOGUEIRA, O. L.; CRISÓSTOMO, L. A.; PAIVA, J. B. |
Afiliação: |
CNPH. |
Título: |
Deficiências de micronutrientes essenciais e toxidez de alumínio e manganês em feijão-de-corda. I- Sintomas visuais. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v.17, n.4, p.559-563, abr. 1982. |
Idioma: |
Português |
Notas: |
Título em inglês: Micronutrient deficiencies and aluminium and manganese toxicity in cowpea. I. Visual symptoms. |
Conteúdo: |
RESUMO - Foi realizado um estudo, em Fortaleza, Ceará, em condições de casa de vegetação, durante 1979, com o propósito de verificar o efeito da deficiência dos micronutrientes boro, cobre, ferro, manganês, molibdênio e zinco e da toxidez de alumínio e manganês, em solução nutritiva, sobre as alterações morfológicas (sintomas visuais) em plantas de feijão-de-corda, Vigna unguiculata (L.) Walp, cultivar Pitiúba. Ficou evidenciado que as deficiências de boro, ferro e manganês e a toxidez de manganês resultaram na manifestação de sintomas visuais bastante característicos. ABSTRACT - The present work was conducted under greenhouse conditions during 1979 at Fortaleza, Ceará. The objective was to study morphological alterations in cowpea plants ( Vigna unguiculata (L) Waip, cv. Pitiuba) caused by the deficiencies of micronutrients such as boron, copper, iron, manganese, molybdenum and zinc, and by the toxicity of aluminum and manganese. It was evident that the deficiencies due to boron, iron and manganese and the toxicity of Mn resulted in most characteristic manifestations of the symptoms. |
Thesagro: |
Alumínio; Feijão de Corda; Manganês; Solução Nutritiva; Toxidez; Vigna Unguiculata. |
Thesaurus Nal: |
Aluminum; Cowpeas; Manganese; Nutrient solutions; Toxicity. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220368/1/Deficiencias-micronutrientes-essenciais-1982.pdf
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Marc: |
LEADER 02059naa a2200289 a 4500 001 1107625 005 2021-01-20 008 1982 bl uuuu u00u1 u #d 100 1 $aNOGUEIRA, O. L. 245 $aDeficiências de micronutrientes essenciais e toxidez de alumínio e manganês em feijão-de-corda. I- Sintomas visuais. 260 $c1982 500 $aTítulo em inglês: Micronutrient deficiencies and aluminium and manganese toxicity in cowpea. I. Visual symptoms. 520 $aRESUMO - Foi realizado um estudo, em Fortaleza, Ceará, em condições de casa de vegetação, durante 1979, com o propósito de verificar o efeito da deficiência dos micronutrientes boro, cobre, ferro, manganês, molibdênio e zinco e da toxidez de alumínio e manganês, em solução nutritiva, sobre as alterações morfológicas (sintomas visuais) em plantas de feijão-de-corda, Vigna unguiculata (L.) Walp, cultivar Pitiúba. Ficou evidenciado que as deficiências de boro, ferro e manganês e a toxidez de manganês resultaram na manifestação de sintomas visuais bastante característicos. ABSTRACT - The present work was conducted under greenhouse conditions during 1979 at Fortaleza, Ceará. The objective was to study morphological alterations in cowpea plants ( Vigna unguiculata (L) Waip, cv. Pitiuba) caused by the deficiencies of micronutrients such as boron, copper, iron, manganese, molybdenum and zinc, and by the toxicity of aluminum and manganese. It was evident that the deficiencies due to boron, iron and manganese and the toxicity of Mn resulted in most characteristic manifestations of the symptoms. 650 $aAluminum 650 $aCowpeas 650 $aManganese 650 $aNutrient solutions 650 $aToxicity 650 $aAlumínio 650 $aFeijão de Corda 650 $aManganês 650 $aSolução Nutritiva 650 $aToxidez 650 $aVigna Unguiculata 700 1 $aCRISÓSTOMO, L. A. 700 1 $aPAIVA, J. B. 773 $tPesquisa Agropecuária Brasileira, Brasília$gv.17, n.4, p.559-563, abr. 1982.
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Embrapa Unidades Centrais (AI-SEDE) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
26/10/2017 |
Data da última atualização: |
22/08/2018 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SANCHES, A. C.; SOUZA, D. P. de; JESUS, F. L. F. de; MAFFEI, R. G.; MENDONÇA, F. C.; PEZZOPANE, J. R. M. |
Afiliação: |
Arthur Carniato Sanches, ESALQ/USP; Débora Pantojo de Souza, ESALQ/USP; Fernanda Lamede Ferreira de Jesus, ESALQ/USP; Rodolfo Guertas Maffei, ESALQ/USP; Fernando Campos Mendonça, ESALQ/USP; JOSE RICARDO MACEDO PEZZOPANE, CPPSE. |
Título: |
Capacitive probe calibration in eutroferric red nitosol cultivated with irrigated forages. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: INOVAGRI INTERNATIONAL MEETING, 4.; CONGRESSO NACIONAL DE IRRIGAÇÃO E DRENAGEM, 26.; SIMPÓSIO BRASILEIRO DE SALINIDADE, 3., 2017, Fortaleza. Anais... Fortaleza: INOVAGRI: ABID; UFC, 2017. |
Páginas: |
p. 1-10. |
DOI: |
http://dx.doi.org/10.7127/iv-inovagri-meeting-2017-res1900232 |
Idioma: |
Inglês |
Conteúdo: |
Knowledge of soil water content is important for proper irrigation management because it allows estimating the required amount of water to be applied at the correct time. Capacitance sensors are an alternative of quantification of soil water content (?, cm3 cm-3 ), providing depth readings in a practical and fast way. A capacitive probe (Diviner 2000®) was calibrated in a eutroferric red nitosol cultivated with irrigated forages at the experimental area of ESALQ/USP in the city of Piracicaba - SP, Brazil. Four access tubes were installed and every 2 weeks samples were collected with 3 replicates for each depth level, by the end of 8 weeks starting from ?saturated. Readings were taken with the equipment for every 0.1 m of soil up to 0.7 m of depth, together with the collection of soil samples for the determination of ? in the laboratory. A power equation was developed for each depth studied as well as for the whole soil profile. The proposed general calibration curve (SF = 0,256*?current 0.3422), adjusted by regression analysis, was significantly related to the measurements of the equipment, with high correlation (r 2 = 0.87), and standard error of 0.022 cm3 cm-3 . The calibration for each depth has shown higher coefficients of correlation at the lower depths, minimizing the error of the estimates. On-site calibration allowed better accuracy of soil water monitoring and, thus, provide better irrigation management. |
Palavras-Chave: |
Frequency domain reflectometry; Sensor. |
Thesaurus NAL: |
irrigation management. |
Categoria do assunto: |
A Sistemas de Cultivo |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165597/1/TC1900232.pdf
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Marc: |
LEADER 02329nam a2200229 a 4500 001 2078230 005 2018-08-22 008 2017 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.7127/iv-inovagri-meeting-2017-res1900232$2DOI 100 1 $aSANCHES, A. C. 245 $aCapacitive probe calibration in eutroferric red nitosol cultivated with irrigated forages.$h[electronic resource] 260 $aIn: INOVAGRI INTERNATIONAL MEETING, 4.; CONGRESSO NACIONAL DE IRRIGAÇÃO E DRENAGEM, 26.; SIMPÓSIO BRASILEIRO DE SALINIDADE, 3., 2017, Fortaleza. Anais... Fortaleza: INOVAGRI: ABID; UFC$c2017 300 $ap. 1-10. 520 $aKnowledge of soil water content is important for proper irrigation management because it allows estimating the required amount of water to be applied at the correct time. Capacitance sensors are an alternative of quantification of soil water content (?, cm3 cm-3 ), providing depth readings in a practical and fast way. A capacitive probe (Diviner 2000®) was calibrated in a eutroferric red nitosol cultivated with irrigated forages at the experimental area of ESALQ/USP in the city of Piracicaba - SP, Brazil. Four access tubes were installed and every 2 weeks samples were collected with 3 replicates for each depth level, by the end of 8 weeks starting from ?saturated. Readings were taken with the equipment for every 0.1 m of soil up to 0.7 m of depth, together with the collection of soil samples for the determination of ? in the laboratory. A power equation was developed for each depth studied as well as for the whole soil profile. The proposed general calibration curve (SF = 0,256*?current 0.3422), adjusted by regression analysis, was significantly related to the measurements of the equipment, with high correlation (r 2 = 0.87), and standard error of 0.022 cm3 cm-3 . The calibration for each depth has shown higher coefficients of correlation at the lower depths, minimizing the error of the estimates. On-site calibration allowed better accuracy of soil water monitoring and, thus, provide better irrigation management. 650 $airrigation management 653 $aFrequency domain reflectometry 653 $aSensor 700 1 $aSOUZA, D. P. de 700 1 $aJESUS, F. L. F. de 700 1 $aMAFFEI, R. G. 700 1 $aMENDONÇA, F. C. 700 1 $aPEZZOPANE, J. R. M.
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