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dc.contributor.authorPARAIBA, L. C.por
dc.contributor.authorPAZIANOTTO, R. A. A.por
dc.contributor.authorLUIZ, A. J. B.por
dc.contributor.authorMAIA, A. de H. N.por
dc.contributor.authorJONSSON, C. M.por
dc.contributor.otherLOURIVAL COSTA PARAIBA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; ALFREDO JOSE BARRETO LUIZ, CNPMA; ALINE DE HOLANDA NUNES MAIA, CNPMA; CLAUDIO MARTIN JONSSON, CNPMA.por
dc.date.accessioned2014-11-14T11:11:11Zpor
dc.date.available2014-11-14T11:11:11Zpor
dc.date.created2014-11-14por
dc.date.issued2014por
dc.identifier.other13221por
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1000149por
dc.descriptionThe 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.por
dc.description.uribitstream/item/111687/1/2014AP013.pdfpor
dc.languageenpor
dc.language.isoengeng
dc.publisherSpanish Journal of Agricultural Research, Madrid, v. 12, n. 2, p. 509-518, 2014.por
dc.relation.ispartofEmbrapa Meio Ambiente - Artigo em periódico indexado (ALICE)por
dc.rightsopenAccesspor
dc.subjectPesticide managementpor
dc.subjectWater quality objectivepor
dc.subjectCana-de-açúcar.por
dc.titleA mathematical model to estimate the volume of grey water of pesticide mixtures.por
dc.typeArtigo em periódico indexado (ALICE)por
dc.date.updated2014-12-24T11:11:11Zpor
dc.subject.thesagroAgrotóxicopor
dc.subject.thesagroHerbicidapor
dc.subject.thesagroQualidade da águapor
dc.subject.thesagroModelo matemático.por
dc.subject.nalthesaurusHerbicidespor
dc.subject.nalthesaurusEnvironmental impactpor
dc.subject.nalthesaurusWater qualitypor
dc.subject.nalthesaurusWater footprintpor
dc.subject.nalthesaurusSugarcanepor
dc.subject.nalthesaurusMathematical modelspor
dc.ainfo.id1000149por
dc.ainfo.lastupdate2014-12-24por
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