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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
09/07/2020 |
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Data da última atualização: |
09/07/2020 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GUILHERME, L. R. G.; CORGUINHA, A. P. B.; VALLE, L. A. R. do; MARCHI, G. |
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Afiliação: |
GIULIANO MARCHI, CPAC. |
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Título: |
Heavy Metals in P Fertilizers Marketed in Brazil: Is This a Concern in Our Agroecosystems? |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON INNOVATION AND TECHNOLOGY IN THE PHOSPHATE INDUSTRY, 5., 2019, Benguerir, Morocco. Proceddings... Benguerir: Polytechnic University, 2019. |
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Idioma: |
Português |
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Conteúdo: |
Abstract Fertilizers are key for sustainable use of land and for intensification of crop production, especially in tropical agroecosystems, which have soil fertility constraints that hamper agricultural production on weathered soils. Heavy metals (HM) occur in fertilizers in low concentrations, as contaminants. Yet, some HM are plant nutrients and are intentionally included in fertilizer formulations. Exposure to high levels of HM (nutrient or not) could pose a health risk to humans. This risk may be estimated by collecting data on HM content in soils and plants (e.g., edible parts) in the field, as well as thru modeling. This work presents information concerning HM contents - with a focus on cadmium - in Brazilian fertilizers and agroecosystems - including agricultural products -, aiming to contribute to a better definition of safe limits of HM in phosphate fertilizers, soils, and food. These limits are key not only for food safety purposes, but also for assuring fair trade. In addition, we demonstrate the usefulness of a tool - the software EtraceProDB -, for easy calculation of risk-based concentrations (RBC) of HM in inorganic fertilizers post application, which suggest safe limits for agricultural use. The purpose of this software is to calculate values of HM concentrations in inorganic fertilizers that may, flexibly, be used by regulators to protect human and soil health. The results obtained indicate that HM do not cause harm to human health when considering post application of phosphate fertilizers in Brazil. Also, a survey of HM contents in Brazilian food and food products evidenced the safety of agricultural crops with respect to their contents of As, Cd, and Pb. Our findings concerning RBC and analyses of HM in mixed fertilizers, as well as current information published in Brazil suggest that HM contents - Cd inclusive - in major agroecosystems as well as the HM limits currently established for P fertilizers by the Brazilian legislation are safe in terms of health risk assessment. Considering the great importance of Brazil as a global food provider, such results are relevant to show that fertilizer use in Brazilian agriculture is done in such a way as to guarantee the production of healthy crops as well as adequate food quality criteria. MenosAbstract Fertilizers are key for sustainable use of land and for intensification of crop production, especially in tropical agroecosystems, which have soil fertility constraints that hamper agricultural production on weathered soils. Heavy metals (HM) occur in fertilizers in low concentrations, as contaminants. Yet, some HM are plant nutrients and are intentionally included in fertilizer formulations. Exposure to high levels of HM (nutrient or not) could pose a health risk to humans. This risk may be estimated by collecting data on HM content in soils and plants (e.g., edible parts) in the field, as well as thru modeling. This work presents information concerning HM contents - with a focus on cadmium - in Brazilian fertilizers and agroecosystems - including agricultural products -, aiming to contribute to a better definition of safe limits of HM in phosphate fertilizers, soils, and food. These limits are key not only for food safety purposes, but also for assuring fair trade. In addition, we demonstrate the usefulness of a tool - the software EtraceProDB -, for easy calculation of risk-based concentrations (RBC) of HM in inorganic fertilizers post application, which suggest safe limits for agricultural use. The purpose of this software is to calculate values of HM concentrations in inorganic fertilizers that may, flexibly, be used by regulators to protect human and soil health. The results obtained indicate that HM do not cause harm to human health when considering post appl... Mostrar Tudo |
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Palavras-Chave: |
Agrucultura tropical; Alimento seguro; Sustentabilidade. |
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Thesagro: |
Segurança Alimentar. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/214523/1/GIULIANO-Heavy-metals.pdf
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Marc: |
LEADER 03015nam a2200193 a 4500
001 2123769
005 2020-07-09
008 2019 bl uuuu u00u1 u #d
100 1 $aGUILHERME, L. R. G.
245 $aHeavy Metals in P Fertilizers Marketed in Brazil$bIs This a Concern in Our Agroecosystems?$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON INNOVATION AND TECHNOLOGY IN THE PHOSPHATE INDUSTRY, 5., 2019, Benguerir, Morocco. Proceddings... Benguerir: Polytechnic University$c2019
520 $aAbstract Fertilizers are key for sustainable use of land and for intensification of crop production, especially in tropical agroecosystems, which have soil fertility constraints that hamper agricultural production on weathered soils. Heavy metals (HM) occur in fertilizers in low concentrations, as contaminants. Yet, some HM are plant nutrients and are intentionally included in fertilizer formulations. Exposure to high levels of HM (nutrient or not) could pose a health risk to humans. This risk may be estimated by collecting data on HM content in soils and plants (e.g., edible parts) in the field, as well as thru modeling. This work presents information concerning HM contents - with a focus on cadmium - in Brazilian fertilizers and agroecosystems - including agricultural products -, aiming to contribute to a better definition of safe limits of HM in phosphate fertilizers, soils, and food. These limits are key not only for food safety purposes, but also for assuring fair trade. In addition, we demonstrate the usefulness of a tool - the software EtraceProDB -, for easy calculation of risk-based concentrations (RBC) of HM in inorganic fertilizers post application, which suggest safe limits for agricultural use. The purpose of this software is to calculate values of HM concentrations in inorganic fertilizers that may, flexibly, be used by regulators to protect human and soil health. The results obtained indicate that HM do not cause harm to human health when considering post application of phosphate fertilizers in Brazil. Also, a survey of HM contents in Brazilian food and food products evidenced the safety of agricultural crops with respect to their contents of As, Cd, and Pb. Our findings concerning RBC and analyses of HM in mixed fertilizers, as well as current information published in Brazil suggest that HM contents - Cd inclusive - in major agroecosystems as well as the HM limits currently established for P fertilizers by the Brazilian legislation are safe in terms of health risk assessment. Considering the great importance of Brazil as a global food provider, such results are relevant to show that fertilizer use in Brazilian agriculture is done in such a way as to guarantee the production of healthy crops as well as adequate food quality criteria.
650 $aSegurança Alimentar
653 $aAgrucultura tropical
653 $aAlimento seguro
653 $aSustentabilidade
700 1 $aCORGUINHA, A. P. B.
700 1 $aVALLE, L. A. R. do
700 1 $aMARCHI, G.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
30/03/2016 |
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Data da última atualização: |
02/05/2016 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
CUENCA, M. A. G.; SANTIAGO, A. D.; DOMPIERI, M. H. G.; SÁ, H. A. |
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Afiliação: |
MANUEL ALBERTO GUTIERREZ CUENCA, CPATC; ANTONIO DIAS SANTIAGO, CPATC; MARCIA HELENA GALINA DOMPIERI, CPATC. |
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Título: |
Análise da evolução e dos efeitos dos fatores da variação do valor bruto da produção de mandioca, no estado de Alagoas. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Aracaju, SE: Embrapa Tabuleiros Costeiros, 2015. |
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Série: |
(Embrapa Tabuleiros Costeiros. Boletim de pesquisa e desenvolvimento, 102). |
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ISSN: |
1678-1961 |
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Idioma: |
Português |
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Conteúdo: |
In order to explain the variation of each component of the Gross Value of Production (GVP) it is necessary to decompose the grouped value. Shift-share is a method used in studies of changes in the regional economy that allows the segmentation of the factors that affect the GVP of certain product. The objective of this study was to analyze the influence of the variables harvested area, yield and price in the rate of percentage variation of the GVP of the cassava (Manihot esculenta) production, in the main producers counties, in Alagoas state, for four periods of six years (1990-1996, 1996-2002, 2002-2008 and 2008-2013) and also for the entire period (1990-2013). Results indicated that the variables price and productivity had positive effects, while harvested area demonstrated negative effect on the GVP. The study also highlighted the evolution of the variables, showing that between 1990 and 2013, the GVP had annual increases of 2,5%, 0,5% and 2,3%, while the harvested area decreased at an annual rate of 0,3%. |
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Palavras-Chave: |
Economia regional; Mandiocultura; Método shift-share; Pprodutividade; Preços agrícolas. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142333/1/BP102.pdf
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Marc: |
LEADER 01803nam a2200229 a 4500
001 2042161
005 2016-05-02
008 2015 bl uuuu u0uu1 u #d
022 $a1678-1961
100 1 $aCUENCA, M. A. G.
245 $aAnálise da evolução e dos efeitos dos fatores da variação do valor bruto da produção de mandioca, no estado de Alagoas.$h[electronic resource]
260 $aAracaju, SE: Embrapa Tabuleiros Costeiros$c2015
490 $a(Embrapa Tabuleiros Costeiros. Boletim de pesquisa e desenvolvimento, 102).
520 $aIn order to explain the variation of each component of the Gross Value of Production (GVP) it is necessary to decompose the grouped value. Shift-share is a method used in studies of changes in the regional economy that allows the segmentation of the factors that affect the GVP of certain product. The objective of this study was to analyze the influence of the variables harvested area, yield and price in the rate of percentage variation of the GVP of the cassava (Manihot esculenta) production, in the main producers counties, in Alagoas state, for four periods of six years (1990-1996, 1996-2002, 2002-2008 and 2008-2013) and also for the entire period (1990-2013). Results indicated that the variables price and productivity had positive effects, while harvested area demonstrated negative effect on the GVP. The study also highlighted the evolution of the variables, showing that between 1990 and 2013, the GVP had annual increases of 2,5%, 0,5% and 2,3%, while the harvested area decreased at an annual rate of 0,3%.
653 $aEconomia regional
653 $aMandiocultura
653 $aMétodo shift-share
653 $aPprodutividade
653 $aPreços agrícolas
700 1 $aSANTIAGO, A. D.
700 1 $aDOMPIERI, M. H. G.
700 1 $aSÁ, H. A.
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