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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
15/08/2007 |
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Data da última atualização: |
29/01/2008 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
MUNIZ, L. C.; FIGUEIREDO, R. S.; VIU, M. A. de O.; MAGNABOSCO, C. de U.; MARTHA JÚNIOR, G. B.; FERRAZ, H. T. |
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Afiliação: |
Luciano Cavalcante Muniz, UFG; Reginaldo Santana Figueiredo, UFG; Marco Antônio de Oliveira Viu, UFG; Cláudio de Ulhôa Magnabosco, CPAC; Geraldo Bueno Martha Júnior, CPAC; Henrique Trevizoli Ferraz, UFG. |
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Título: |
Avaliação da viabilidade econômica do projeto de integração lavoura e pecuária. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., 2007, Jaboticabal. Anais... Jaboticabal: Unesp: SBZ, 2007. 1 CD-ROM |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho teve o objetivo de analisar a viabilidade econômica do projeto de integração lavoura e pecuária (PILP). Foi realizado o acompanhamento da evolução do ganho de peso, por animal e por área, ao longo do ano estudado, utilizando dados dos animais participantes do Teste de Desempenho de Touro Jovem (TDTJ) da Embrapa Arroz e Feijão em Santo Antônio de Goiás-GO. Foram considerados quatro cenários: arrendamento (A) ou depreciação (D) e 90% de recurso do governo (RG) mais 10% de capital próprio (CP) ou 100% CP. Os indicadores econômicos utilizados foram Valor Presente Líquido (VPL), Relação Benefício Custo (RBC) e Taxa Interna de Retorno (TIR), sendo que foi calculada a TIR apenas para os dois cenários determinísticos com CP e depreciação ou arrendamento. Todos os cenários resultaram em avaliações favoráveis quando da adoção deste projeto, sendo o cenário TDTJ/D/RG+CP a melhor opção de investimento, com VPL igual a R$ 123.713,40 e RBC igual a 1,55, indicando tratar-se de um projeto viável. A TIR demonstrou ser favorável investir no PILP mediante os cenários avaliados, pois as taxas obtidas foram maiores ou iguais ao custo de oportunidade do capital próprio (10% a.a.). |
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Palavras-Chave: |
Modelagem. |
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Thesagro: |
Gado de Corte; Ganho de Peso; Lavoura; Pecuária. |
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Categoria do assunto: |
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Marc: |
LEADER 01972naa a2200241 a 4500
001 1570326
005 2008-01-29
008 2007 bl uuuu u00u1 u #d
100 1 $aMUNIZ, L. C.
245 $aAvaliação da viabilidade econômica do projeto de integração lavoura e pecuária.
260 $c2007
520 $aEste trabalho teve o objetivo de analisar a viabilidade econômica do projeto de integração lavoura e pecuária (PILP). Foi realizado o acompanhamento da evolução do ganho de peso, por animal e por área, ao longo do ano estudado, utilizando dados dos animais participantes do Teste de Desempenho de Touro Jovem (TDTJ) da Embrapa Arroz e Feijão em Santo Antônio de Goiás-GO. Foram considerados quatro cenários: arrendamento (A) ou depreciação (D) e 90% de recurso do governo (RG) mais 10% de capital próprio (CP) ou 100% CP. Os indicadores econômicos utilizados foram Valor Presente Líquido (VPL), Relação Benefício Custo (RBC) e Taxa Interna de Retorno (TIR), sendo que foi calculada a TIR apenas para os dois cenários determinísticos com CP e depreciação ou arrendamento. Todos os cenários resultaram em avaliações favoráveis quando da adoção deste projeto, sendo o cenário TDTJ/D/RG+CP a melhor opção de investimento, com VPL igual a R$ 123.713,40 e RBC igual a 1,55, indicando tratar-se de um projeto viável. A TIR demonstrou ser favorável investir no PILP mediante os cenários avaliados, pois as taxas obtidas foram maiores ou iguais ao custo de oportunidade do capital próprio (10% a.a.).
650 $aGado de Corte
650 $aGanho de Peso
650 $aLavoura
650 $aPecuária
653 $aModelagem
700 1 $aFIGUEIREDO, R. S.
700 1 $aVIU, M. A. de O.
700 1 $aMAGNABOSCO, C. de U.
700 1 $aMARTHA JÚNIOR, G. B.
700 1 $aFERRAZ, H. T.
773 $tIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., 2007, Jaboticabal. Anais... Jaboticabal: Unesp: SBZ, 2007. 1 CD-ROM
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
09/01/2019 |
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Data da última atualização: |
27/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TIECHER, T. L; SORIANI, H. H.; TIECHER, T.; CERETTA, C. A.; NICOLOSO, F. T.; TAROUCO, C. P.; CLASEN, B. E.; DE CONTI, L.; TASSINARI, A.; MELO, G. W. B. de; BRUNETTO, G. |
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Afiliação: |
Tadeu L. Tiecher, Federal Institute Farroupilha, Campus Alegrete, 97555-000 Alegrete, RS, Brazil; Hilda H. Soriani, Forestry Department, Federal University of Santa Maria, Campus Frederico Westphalen, 98400-000 Frederico Westphalen, RS, Brazil; Tales Tiecher, Soil Science Department of Federal University of Rio Grande do Sul (UFRGS), 91540-000 Porto Alegre, RS, Brazil; Carlos A. Ceretta, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil; Fernando T. Nicoloso, Biology Department, Center of Natural and Exact Sciences, Federal University of Santa Maria (RS), 97105-900 Santa Maria, RS, Brazil; Camila P. Tarouco, Biology Department, Center of Natural and Exact Sciences, Federal University of Santa Maria (RS), 97105-900 Santa Maria, RS, Brazil; Barbara E. Clasen, Environmental Sciences Department, State University of Rio Grande do Sul (UERGS), 98600-000 Três Passos, RS, Brazil; Lessandro De Conti, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil; Adriele Tassinari, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil; GEORGE WELLINGTON BASTOS DE MELO, CNPUV; Gustavo Brunetto, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil. |
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Título: |
The interaction of high copper and zinc doses in acid soil changes the physiological state and development of the root system in young grapevines (Vitis vinifera). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Ecotoxicology and Environmental Safety, v. 148, p. 985-994, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Old vineyards may present high copper (Cu) content in the soil due to the frequent application of Bordeaux fungicide to control leaf fungal diseases. Thus, many wine makers replace copper fungicides by those made of zinc (Zn) and it leads to the accumulation of these two elements in vineyard soils, fact that may potentiate the occurrence of physiological disorders and morphological changes in the plant root system. The aim of the current study was to assess the effects of high Cu and Zn contents in a sandy acid soil on the physiological state and development of the root system in young grapevines. The soil was taken from a vineyard from Southern Brazil, and then it was sieved and had its acidity and P and K contents corrected. Next, the soil was subjected to the application of 0 and 120 mg Cu kg?1 ; each one of these doses was added with 0, 120 and 240 mg Zn kg?1 , thus totaling six treatments. After the treatments were added to the soil samples, 2.4 kg of soil was stored in rizoboxtype containers. One young grapevine plant was transplanted to each box. The transplanted plants were cultivated for 60 days in greenhouse. The accumulation of root and shoot dry matter was set after the experimental period, as well as the Cu and Zn contents in the roots and shoot, the root system morphology, the chlorophyll a fluorescence, the photosynthetic pigments, the gas exchanges and the superoxide dismutase enzyme activity (SOD). Young grapevines presented mechanisms to tolerate high Cu and Zn concentrations in the soil, mainly through the retention of such metals in their roots to diminish translocation to the shoot. However, the highest Cu and Zn doses led to grapevine plant growth decrease, to gas exchange alterations and to photochemical efficiency reduction associated with photosynthetic pigment decrease and to non-photochemical energy dissipation increase. Moreover, the SOD activity was greater in intermediate Zn doses, thus indicating antioxidant system activation. Thus, the combination between high Cu and Zn concentrations in vineyard soils will enable minimizing the toxic effects of these metals to young grapevines cultivated in these soils. Keywords: Vineyard soils Gas exchange Chlorophyll fluorescence Root system Photosynthetic pigments Heavy metals MenosOld vineyards may present high copper (Cu) content in the soil due to the frequent application of Bordeaux fungicide to control leaf fungal diseases. Thus, many wine makers replace copper fungicides by those made of zinc (Zn) and it leads to the accumulation of these two elements in vineyard soils, fact that may potentiate the occurrence of physiological disorders and morphological changes in the plant root system. The aim of the current study was to assess the effects of high Cu and Zn contents in a sandy acid soil on the physiological state and development of the root system in young grapevines. The soil was taken from a vineyard from Southern Brazil, and then it was sieved and had its acidity and P and K contents corrected. Next, the soil was subjected to the application of 0 and 120 mg Cu kg?1 ; each one of these doses was added with 0, 120 and 240 mg Zn kg?1 , thus totaling six treatments. After the treatments were added to the soil samples, 2.4 kg of soil was stored in rizoboxtype containers. One young grapevine plant was transplanted to each box. The transplanted plants were cultivated for 60 days in greenhouse. The accumulation of root and shoot dry matter was set after the experimental period, as well as the Cu and Zn contents in the roots and shoot, the root system morphology, the chlorophyll a fluorescence, the photosynthetic pigments, the gas exchanges and the superoxide dismutase enzyme activity (SOD). Young grapevines presented mechanisms to tolerate high Cu an... Mostrar Tudo |
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Palavras-Chave: |
Chlorophyll fluorescence; Old vineyards; Photosynthetic pigments; Root system; Young grapevines. |
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Thesaurus NAL: |
Acid soils; Copper; Gas exchange; Heavy metals; Vineyard soils; Zinc. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190117/1/The-interaction-of-high-copper-and-zinc-doses-in-acid-soil.pdf
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Marc: |
LEADER 03397naa a2200373 a 4500
001 2103455
005 2019-04-27
008 2018 bl uuuu u00u1 u #d
100 1 $aTIECHER, T. L
245 $aThe interaction of high copper and zinc doses in acid soil changes the physiological state and development of the root system in young grapevines (Vitis vinifera).$h[electronic resource]
260 $c2018
520 $aOld vineyards may present high copper (Cu) content in the soil due to the frequent application of Bordeaux fungicide to control leaf fungal diseases. Thus, many wine makers replace copper fungicides by those made of zinc (Zn) and it leads to the accumulation of these two elements in vineyard soils, fact that may potentiate the occurrence of physiological disorders and morphological changes in the plant root system. The aim of the current study was to assess the effects of high Cu and Zn contents in a sandy acid soil on the physiological state and development of the root system in young grapevines. The soil was taken from a vineyard from Southern Brazil, and then it was sieved and had its acidity and P and K contents corrected. Next, the soil was subjected to the application of 0 and 120 mg Cu kg?1 ; each one of these doses was added with 0, 120 and 240 mg Zn kg?1 , thus totaling six treatments. After the treatments were added to the soil samples, 2.4 kg of soil was stored in rizoboxtype containers. One young grapevine plant was transplanted to each box. The transplanted plants were cultivated for 60 days in greenhouse. The accumulation of root and shoot dry matter was set after the experimental period, as well as the Cu and Zn contents in the roots and shoot, the root system morphology, the chlorophyll a fluorescence, the photosynthetic pigments, the gas exchanges and the superoxide dismutase enzyme activity (SOD). Young grapevines presented mechanisms to tolerate high Cu and Zn concentrations in the soil, mainly through the retention of such metals in their roots to diminish translocation to the shoot. However, the highest Cu and Zn doses led to grapevine plant growth decrease, to gas exchange alterations and to photochemical efficiency reduction associated with photosynthetic pigment decrease and to non-photochemical energy dissipation increase. Moreover, the SOD activity was greater in intermediate Zn doses, thus indicating antioxidant system activation. Thus, the combination between high Cu and Zn concentrations in vineyard soils will enable minimizing the toxic effects of these metals to young grapevines cultivated in these soils. Keywords: Vineyard soils Gas exchange Chlorophyll fluorescence Root system Photosynthetic pigments Heavy metals
650 $aAcid soils
650 $aCopper
650 $aGas exchange
650 $aHeavy metals
650 $aVineyard soils
650 $aZinc
653 $aChlorophyll fluorescence
653 $aOld vineyards
653 $aPhotosynthetic pigments
653 $aRoot system
653 $aYoung grapevines
700 1 $aSORIANI, H. H.
700 1 $aTIECHER, T.
700 1 $aCERETTA, C. A.
700 1 $aNICOLOSO, F. T.
700 1 $aTAROUCO, C. P.
700 1 $aCLASEN, B. E.
700 1 $aDE CONTI, L.
700 1 $aTASSINARI, A.
700 1 $aMELO, G. W. B. de
700 1 $aBRUNETTO, G.
773 $tEcotoxicology and Environmental Safety$gv. 148, p. 985-994, 2018.
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Embrapa Uva e Vinho (CNPUV) |
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