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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
29/11/1997 |
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Data da última atualização: |
04/11/2015 |
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Autoria: |
TOZZATO, E.; BONATO, P. S.; CERDEIRA, A. L.; GOMES, M. A. F.; CARVALHO, D.; LANCHOTE, V. L.; QUEIROZ, R. H. C. |
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Afiliação: |
USP; USP; ANTONIO LUIZ CERDEIRA, CNPMA; MARCO ANTONIO FERREIRA GOMES, CNPMA; USP; USP; USP. |
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Título: |
Method for bioassaying ametryne in water. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997,Ribeirao Preto, SP. Bollettino Chimico Farmaceutico, v.136, p.49, 1997. Abstract. |
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Idioma: |
Inglês |
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Conteúdo: |
The beneficial effects of herbicides are sometimes mitigated by their persistence in the environment. Water may be contaminated with herbicides from aerial spraying, runoff from land treated with herbicides, and direct introduction of herbicides into water to control aquatic weeds. The availability of a monitoring system for herbicides, particularly in flowing wates such as irrigation canals is essential so that damage to the environment and crop plants through the use of contaminated water can ve avoided. Therefore, a simple and rapid quantitative method is presented for the screening and determination of small amounts of ametryne in aqueous solution. This method is based on the activity of the ametryne in inhibition the growth of the primary root and shoot of germinating Lactuca sativa seed. Solutions of ametryne of unknown concentration, may be subjected to the procedure herein described, and growth inhibition may be expressed in percentage of control. This may then be compared with the standard curve, and the presumptive concentration of ametryne may be thereby ascertained. It is sensitive to 0.02 ug/l and is applicable from this concentration to 2 ug/l. Initial surface sterilization of the seed, selection of pregerminated seed of certain root lengths, and special equipment are not necessary. |
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Palavras-Chave: |
Ametryne; Método de bioensaio. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/87149/1/1997RAs-007.PDF
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Marc: |
LEADER 01970nam a2200205 a 4500
001 1012761
005 2015-11-04
008 1997 bl uuuu u00u1 u #d
100 1 $aTOZZATO, E.
245 $aMethod for bioassaying ametryne in water.$h[electronic resource]
260 $aIn: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997,Ribeirao Preto, SP. Bollettino Chimico Farmaceutico, v.136, p.49, 1997. Abstract.$c1997
520 $aThe beneficial effects of herbicides are sometimes mitigated by their persistence in the environment. Water may be contaminated with herbicides from aerial spraying, runoff from land treated with herbicides, and direct introduction of herbicides into water to control aquatic weeds. The availability of a monitoring system for herbicides, particularly in flowing wates such as irrigation canals is essential so that damage to the environment and crop plants through the use of contaminated water can ve avoided. Therefore, a simple and rapid quantitative method is presented for the screening and determination of small amounts of ametryne in aqueous solution. This method is based on the activity of the ametryne in inhibition the growth of the primary root and shoot of germinating Lactuca sativa seed. Solutions of ametryne of unknown concentration, may be subjected to the procedure herein described, and growth inhibition may be expressed in percentage of control. This may then be compared with the standard curve, and the presumptive concentration of ametryne may be thereby ascertained. It is sensitive to 0.02 ug/l and is applicable from this concentration to 2 ug/l. Initial surface sterilization of the seed, selection of pregerminated seed of certain root lengths, and special equipment are not necessary.
653 $aAmetryne
653 $aMétodo de bioensaio
700 1 $aBONATO, P. S.
700 1 $aCERDEIRA, A. L.
700 1 $aGOMES, M. A. F.
700 1 $aCARVALHO, D.
700 1 $aLANCHOTE, V. L.
700 1 $aQUEIROZ, R. H. C.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura. |
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Data corrente: |
17/11/2016 |
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Data da última atualização: |
19/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BORGHI, E.; AVANZI, J. C.; BORTOLON, L.; LUCHIARI JUNIOR, A.; BORTOLON, E. S. O. |
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Afiliação: |
EMERSON BORGHI, CNPMS; JUNIOR CESAR AVANZI, CNPASA; LEANDRO BORTOLON, CNPASA; ARIOVALDO LUCHIARI JUNIOR, CNPTIA; ELISANDRA SOLANGE OLIVEIRA BORTOLON, CNPASA. |
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Título: |
Adoption and use of precision agriculture in Brazil: perception of growers and service dealership. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Agricultural Science, Cambridge, v. 8, n. 11, p. 89-104, 2016. |
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DOI: |
10.5539/jas.v8n11p89 |
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Idioma: |
Inglês |
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Conteúdo: |
Precision agriculture (PA) is growing considerably in Brazil. However, there is a lack of information regarding to PA adoption and use in the country. This study sought to: (i) investigate the perception of growers and service dealership about PA technologies; (ii) identify constraints to PA adoption; (iii) obtain information that might be useful to motivate producers and agronomists to use PA technologies in the crop production systems. A web-based survey approach method was used to collect data from farmers and services dealership involved with PA in several crop production regions of Brazil. We found that the growth of PA was linked to the agronomic and economic gains observed in the field; however, in some situations, the producers still can not measure the real PA impact in producer system. Economic aspects coupled with the difficulty to use of software and equipment proportioned by the lack of technical training of field teams, may be the main factors limiting the PA expansion in many producing regions of Brazil. Precision agriculture work carried out by dealership in Brazil is quite recent. The most services offered is gridding soil sampling, field mapping for lime and fertilizer application at variable rate. Many producers already have PA equipment loaded on their machines, but little explored, also restricting to fertilizers and lime application. Looking at the currently existing technologies and services offered by dealership, the PA use in Brazil could be better exploited, and therefore, a more rational use of non-renewable resources. MenosPrecision agriculture (PA) is growing considerably in Brazil. However, there is a lack of information regarding to PA adoption and use in the country. This study sought to: (i) investigate the perception of growers and service dealership about PA technologies; (ii) identify constraints to PA adoption; (iii) obtain information that might be useful to motivate producers and agronomists to use PA technologies in the crop production systems. A web-based survey approach method was used to collect data from farmers and services dealership involved with PA in several crop production regions of Brazil. We found that the growth of PA was linked to the agronomic and economic gains observed in the field; however, in some situations, the producers still can not measure the real PA impact in producer system. Economic aspects coupled with the difficulty to use of software and equipment proportioned by the lack of technical training of field teams, may be the main factors limiting the PA expansion in many producing regions of Brazil. Precision agriculture work carried out by dealership in Brazil is quite recent. The most services offered is gridding soil sampling, field mapping for lime and fertilizer application at variable rate. Many producers already have PA equipment loaded on their machines, but little explored, also restricting to fertilizers and lime application. Looking at the currently existing technologies and services offered by dealership, the PA use in Brazil could be better e... Mostrar Tudo |
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Palavras-Chave: |
Maize. |
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Thesagro: |
Agricultura de precisão; Glycine max; Milho; Soja; Zea mays. |
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Thesaurus NAL: |
Precision agriculture; Soybeans. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150184/1/Adoption-use.pdf
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Marc: |
LEADER 02380naa a2200277 a 4500
001 2056572
005 2016-12-19
008 2016 bl uuuu u00u1 u #d
024 7 $a10.5539/jas.v8n11p89$2DOI
100 1 $aBORGHI, E.
245 $aAdoption and use of precision agriculture in Brazil$bperception of growers and service dealership.$h[electronic resource]
260 $c2016
520 $aPrecision agriculture (PA) is growing considerably in Brazil. However, there is a lack of information regarding to PA adoption and use in the country. This study sought to: (i) investigate the perception of growers and service dealership about PA technologies; (ii) identify constraints to PA adoption; (iii) obtain information that might be useful to motivate producers and agronomists to use PA technologies in the crop production systems. A web-based survey approach method was used to collect data from farmers and services dealership involved with PA in several crop production regions of Brazil. We found that the growth of PA was linked to the agronomic and economic gains observed in the field; however, in some situations, the producers still can not measure the real PA impact in producer system. Economic aspects coupled with the difficulty to use of software and equipment proportioned by the lack of technical training of field teams, may be the main factors limiting the PA expansion in many producing regions of Brazil. Precision agriculture work carried out by dealership in Brazil is quite recent. The most services offered is gridding soil sampling, field mapping for lime and fertilizer application at variable rate. Many producers already have PA equipment loaded on their machines, but little explored, also restricting to fertilizers and lime application. Looking at the currently existing technologies and services offered by dealership, the PA use in Brazil could be better exploited, and therefore, a more rational use of non-renewable resources.
650 $aPrecision agriculture
650 $aSoybeans
650 $aAgricultura de precisão
650 $aGlycine max
650 $aMilho
650 $aSoja
650 $aZea mays
653 $aMaize
700 1 $aAVANZI, J. C.
700 1 $aBORTOLON, L.
700 1 $aLUCHIARI JUNIOR, A.
700 1 $aBORTOLON, E. S. O.
773 $tJournal of Agricultural Science, Cambridge$gv. 8, n. 11, p. 89-104, 2016.
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Embrapa Milho e Sorgo (CNPMS) |
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