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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/11/2014 |
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Data da última atualização: |
04/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PARAIBA, L. C.; PAZIANOTTO, R. A. A.; LUIZ, A. J. B.; MAIA, A. de H. N.; JONSSON, C. M. |
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Afiliação: |
LOURIVAL COSTA PARAIBA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; ALFREDO JOSE BARRETO LUIZ, CNPMA; ALINE DE HOLANDA NUNES MAIA, CNPMA; CLAUDIO MARTIN JONSSON, CNPMA. |
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Título: |
A mathematical model to estimate the volume of grey water of pesticide mixtures. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Spanish Journal of Agricultural Research, Madrid, v. 12, n. 2, p. 509-518, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The usual method to calculate grey water footprint does not take into account the volume of water required to dilute concentrations of pesticide mixtures in freshwater and it also depends on maximum concentration limit acceptable in water. We propose a model to estimate the grey water footprint of crops by calculating the volume of water necessary to dilute pesticide mixtures reaching freshwaters. The model requires short-term toxicity data from aquatic organisms based on EC50 values, soil pesticide half-life and soil sorption coefficient values, and does not require maximum concentration limit acceptable in water. The lixiviation rate and runoff rate of each pesticide was estimated by attenuation factor and by Soilfug model, respectively. The usefulness of the proposed model was illustrated by estimating the volume of grey water required to dilute the 17 most widely used herbicides in sugarcane crops of Brazil. The grey water footprint corresponding to the recommended agronomic dose for each herbicide varied between 4.20×106 m3 yr-1 and 1.20×1012 m3 yr-1 and the grey water footprint of the mixture of herbicides was 2.36×1012 m3 yr-1 in a cultivated area of 8.4×106 ha. These results establish the ranking position of each herbicide in the composition of the grey water footprint of mixture of herbicides. The rank of each herbicide could be used to create a label to be placed on the package of the pesticide, thus informing farmers about the volume of grey water per hectare due to the use of this herbicide. MenosThe usual method to calculate grey water footprint does not take into account the volume of water required to dilute concentrations of pesticide mixtures in freshwater and it also depends on maximum concentration limit acceptable in water. We propose a model to estimate the grey water footprint of crops by calculating the volume of water necessary to dilute pesticide mixtures reaching freshwaters. The model requires short-term toxicity data from aquatic organisms based on EC50 values, soil pesticide half-life and soil sorption coefficient values, and does not require maximum concentration limit acceptable in water. The lixiviation rate and runoff rate of each pesticide was estimated by attenuation factor and by Soilfug model, respectively. The usefulness of the proposed model was illustrated by estimating the volume of grey water required to dilute the 17 most widely used herbicides in sugarcane crops of Brazil. The grey water footprint corresponding to the recommended agronomic dose for each herbicide varied between 4.20×106 m3 yr-1 and 1.20×1012 m3 yr-1 and the grey water footprint of the mixture of herbicides was 2.36×1012 m3 yr-1 in a cultivated area of 8.4×106 ha. These results establish the ranking position of each herbicide in the composition of the grey water footprint of mixture of herbicides. The rank of each herbicide could be used to create a label to be placed on the package of the pesticide, thus informing farmers about the volume of grey water per hectare due ... Mostrar Tudo |
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Palavras-Chave: |
Cana-de-açúcar; Pesticide management; Water quality objective. |
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Thesagro: |
Agrotóxico; Herbicida; Modelo matemático; Qualidade da água. |
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Thesaurus Nal: |
Environmental impact; Herbicides; Mathematical models; Sugarcane; Water footprint; Water quality. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111687/1/2014AP013.pdf
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Marc: |
LEADER 02495naa a2200325 a 4500
001 2000149
005 2023-01-04
008 2014 bl uuuu u00u1 u #d
100 1 $aPARAIBA, L. C.
245 $aA mathematical model to estimate the volume of grey water of pesticide mixtures.$h[electronic resource]
260 $c2014
520 $aThe usual method to calculate grey water footprint does not take into account the volume of water required to dilute concentrations of pesticide mixtures in freshwater and it also depends on maximum concentration limit acceptable in water. We propose a model to estimate the grey water footprint of crops by calculating the volume of water necessary to dilute pesticide mixtures reaching freshwaters. The model requires short-term toxicity data from aquatic organisms based on EC50 values, soil pesticide half-life and soil sorption coefficient values, and does not require maximum concentration limit acceptable in water. The lixiviation rate and runoff rate of each pesticide was estimated by attenuation factor and by Soilfug model, respectively. The usefulness of the proposed model was illustrated by estimating the volume of grey water required to dilute the 17 most widely used herbicides in sugarcane crops of Brazil. The grey water footprint corresponding to the recommended agronomic dose for each herbicide varied between 4.20×106 m3 yr-1 and 1.20×1012 m3 yr-1 and the grey water footprint of the mixture of herbicides was 2.36×1012 m3 yr-1 in a cultivated area of 8.4×106 ha. These results establish the ranking position of each herbicide in the composition of the grey water footprint of mixture of herbicides. The rank of each herbicide could be used to create a label to be placed on the package of the pesticide, thus informing farmers about the volume of grey water per hectare due to the use of this herbicide.
650 $aEnvironmental impact
650 $aHerbicides
650 $aMathematical models
650 $aSugarcane
650 $aWater footprint
650 $aWater quality
650 $aAgrotóxico
650 $aHerbicida
650 $aModelo matemático
650 $aQualidade da água
653 $aCana-de-açúcar
653 $aPesticide management
653 $aWater quality objective
700 1 $aPAZIANOTTO, R. A. A.
700 1 $aLUIZ, A. J. B.
700 1 $aMAIA, A. de H. N.
700 1 $aJONSSON, C. M.
773 $tSpanish Journal of Agricultural Research, Madrid$gv. 12, n. 2, p. 509-518, 2014.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/05/2008 |
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Data da última atualização: |
09/03/2015 |
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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: |
FERREIRA, A. C. H.; NEIVA, J. N. M.; RODRIGUEZ, N. M.; LOBO, R. N. B.; VASCONCELOS, V. R. de. |
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Afiliação: |
Ana Cristina Holanda Ferreira, UFMG; José Neuman Miranda Neiva, Universidade Federal de Tocantins (UFT); Norberto Mário Rodriguez, UFMG; Raimundo Nonato Braga Lobo, CNPC; Vânia Rodrigues de Vasconcelos, Universidade Federal do Piauí (UFPI). |
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Título: |
Valor nutritivo das silagens de capim-elefante com diferentes níveis de subprodutos da indústria do suco de caju. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, Viçosa, MG, v. 33, n. 6, p. 1380-1385, nov./dez. 2004. |
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Idioma: |
Português |
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Conteúdo: |
Resumo: O trabalho foi conduzido com o objetivo de se avaliar o valor nutritivo das silagens de capim-elefante com adição de 0, 12, 24, 36 e 48% de bagaço de caju (subproduto da agroindústria de suco de caju). Utilizou-se o delineamento inteiramente casualizado com quatro repetições. Após 82 dias, os silos foram abertos e coletadas amostras para determinação dos teores de matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), hemicelulose (HEM), pH e níveis de N-NH3 das silagens. A adição de bagaço de caju (BC) diminuiu os valores de pH e N-NH3 e elevou os teores de PB das silagens. Os teores de FDA e HEM não diferiram entre os tratamentos. Concluiu-se que o bagaço de caju melhora o valor nutritivo da silagem e proporciona melhor conservação da massa ensilada. [Nutritive Value of Elephantgrass Silage Added By-Products from the Cashew Juice Industry]. Abstract: This trial was conducted with the objective of evaluating the nutritive value of the silage of elephantgrass by the addition of 0, 12, 24, 36 and 48% of cashew bagasse (by-product of the cashew juice agro-industry). A completely randomized design with four replicates was used. After 82 days, the silos were opened and samples were collected for determination of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), pH and levels of N-NH3 of the silage. The addition of the cashew bagasse (BC) decreased the pH and N-NH3 values and increased the PB grade of the silage. The level of ADF and HEM did not change in function of different additions. It was concluded that the cashew bagasse improves the nutritive value of the silage and provides better conservation of silage MenosResumo: O trabalho foi conduzido com o objetivo de se avaliar o valor nutritivo das silagens de capim-elefante com adição de 0, 12, 24, 36 e 48% de bagaço de caju (subproduto da agroindústria de suco de caju). Utilizou-se o delineamento inteiramente casualizado com quatro repetições. Após 82 dias, os silos foram abertos e coletadas amostras para determinação dos teores de matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), hemicelulose (HEM), pH e níveis de N-NH3 das silagens. A adição de bagaço de caju (BC) diminuiu os valores de pH e N-NH3 e elevou os teores de PB das silagens. Os teores de FDA e HEM não diferiram entre os tratamentos. Concluiu-se que o bagaço de caju melhora o valor nutritivo da silagem e proporciona melhor conservação da massa ensilada. [Nutritive Value of Elephantgrass Silage Added By-Products from the Cashew Juice Industry]. Abstract: This trial was conducted with the objective of evaluating the nutritive value of the silage of elephantgrass by the addition of 0, 12, 24, 36 and 48% of cashew bagasse (by-product of the cashew juice agro-industry). A completely randomized design with four replicates was used. After 82 days, the silos were opened and samples were collected for determination of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), pH and levels of N-NH3 of the silage. The addition of the cashew bagasse (BC) decreased the pH... Mostrar Tudo |
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Palavras-Chave: |
Subproduto agroindustrial. |
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Thesagro: |
Anacardium Occidentale; Bagaço; Caju; Capim Elefante; Fermentação; Ganho de Peso; Nutrição Animal; Pennisetum Purpureum; Silagem. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28387/1/API-Valor-nutritivo-das-silagens-de-capim-elefante-com-diferentes-niveis-de-subprodutos.pdf
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Marc: |
LEADER 02659naa a2200289 a 4500
001 1532873
005 2015-03-09
008 2004 bl uuuu u00u1 u #d
100 1 $aFERREIRA, A. C. H.
245 $aValor nutritivo das silagens de capim-elefante com diferentes níveis de subprodutos da indústria do suco de caju.
260 $c2004
520 $aResumo: O trabalho foi conduzido com o objetivo de se avaliar o valor nutritivo das silagens de capim-elefante com adição de 0, 12, 24, 36 e 48% de bagaço de caju (subproduto da agroindústria de suco de caju). Utilizou-se o delineamento inteiramente casualizado com quatro repetições. Após 82 dias, os silos foram abertos e coletadas amostras para determinação dos teores de matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), hemicelulose (HEM), pH e níveis de N-NH3 das silagens. A adição de bagaço de caju (BC) diminuiu os valores de pH e N-NH3 e elevou os teores de PB das silagens. Os teores de FDA e HEM não diferiram entre os tratamentos. Concluiu-se que o bagaço de caju melhora o valor nutritivo da silagem e proporciona melhor conservação da massa ensilada. [Nutritive Value of Elephantgrass Silage Added By-Products from the Cashew Juice Industry]. Abstract: This trial was conducted with the objective of evaluating the nutritive value of the silage of elephantgrass by the addition of 0, 12, 24, 36 and 48% of cashew bagasse (by-product of the cashew juice agro-industry). A completely randomized design with four replicates was used. After 82 days, the silos were opened and samples were collected for determination of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), pH and levels of N-NH3 of the silage. The addition of the cashew bagasse (BC) decreased the pH and N-NH3 values and increased the PB grade of the silage. The level of ADF and HEM did not change in function of different additions. It was concluded that the cashew bagasse improves the nutritive value of the silage and provides better conservation of silage
650 $aAnacardium Occidentale
650 $aBagaço
650 $aCaju
650 $aCapim Elefante
650 $aFermentação
650 $aGanho de Peso
650 $aNutrição Animal
650 $aPennisetum Purpureum
650 $aSilagem
653 $aSubproduto agroindustrial
700 1 $aNEIVA, J. N. M.
700 1 $aRODRIGUEZ, N. M.
700 1 $aLOBO, R. N. B.
700 1 $aVASCONCELOS, V. R. de
773 $tRevista Brasileira de Zootecnia, Viçosa, MG$gv. 33, n. 6, p. 1380-1385, nov./dez. 2004.
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Embrapa Caprinos e Ovinos (CNPC) |
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