Results 21 to 30 of about 1,892 (177)

Degradación de bromacil mediante la cepa IT-01 de Penicillium spp. y su aplicación en un biofiltro a escala laboratorio

open access: yesTecnología en Marcha, 2017
El bromacil es un pesticida que se ha encontrado en fuentes de abastecimiento de agua en Costa Rica. Se ha estudiado su degradación en matriz acuosa, principalmente con métodos fotoquímicos.
Emmanuel Campos-Vargas   +2 more
doaj   +1 more source

Use of quadrupole time-of-flight mass spectrometry for proposal of transformation products of the herbicide bromacil after water chlorination [PDF]

open access: yes, 2011
The herbicide bromacil has been extensively used in the Spanish Mediterranean region, and although plant protection products containing bromacil have been withdrawn by the European Union, this compound is still frequently detected in surface and ground ...
Hernandez, Felix   +3 more
core   +3 more sources

The Combined Algae Test for the Evaluation of Mixture Toxicity in Environmental Samples

open access: yesEnvironmental Toxicology and Chemistry, Volume 39, Issue 12, Page 2496-2508, December 2020., 2020
The combined algae test (CAT) allows cost‐efficient high‐throughput monitoring of chemicals and water samples for their algae toxicity with a diagnostic component to differentiate between the mixture effects of photosynthesis inhibitors and other chemicals.
Lisa Glauch, Beate I. Escher
wiley   +1 more source

The 2018 European Union report on pesticide residues in food

open access: yesEFSA Journal, Volume 18, Issue 4, April 2020., 2020
Abstract Under EU legislation (Article 32, Regulation (EC) No 396/2005), EFSA provides an annual report which analyses pesticide residue levels in foods on the European market. The analysis is based on data from the official national control activities carried out by EU Member States, Iceland and Norway and includes a subset of data from the EU ...
European Food Safety Authority (EFSA)   +2 more
wiley   +1 more source

Design, construction and evaluation of a simple pressurized solvent extraction system [PDF]

open access: yes, 2009
This work describes the construction and testing of a simple pressurized solvent extraction (PSE) system. A mixture of acetone:water (80:20), 80 ºC and 103.5 bar, was used to extract two herbicides (Diuron and Bromacil) from a sample of polluted soil ...
LANÇAS, F. M., PINTO, J. S. S.
core   +1 more source

Pesticide residues and transformation products in groundwater from a Spanish agricultural region on the Mediterranean Coast [PDF]

open access: yes, 2008
An overview is given on the presence and changes over time of pesticide residues in groundwater from the Valencia region, one of the most important citrus cultivation sites of southern Europe.
Hernandez, Felix   +5 more
core   +2 more sources

Uso contínuo de herbicidas em citrus (Citrus sinensis (L ) Osbeck), I - efeitos no controle de plantas daninhas Continous use of herbicides in citros (Citrus sinensis) (L.) Osbeck. I - effects on weed control

open access: yesPlanta Daninha, 1991
A presente pesquisa foi conduzida no município de Conchal - SP, Brasil, em um Latossolo Vermelho Amarelo com 1,75% de matéria orgânica, com o objetivo de verificar o efeito do uso continuo dos principais herbicidas, no controle de plantas daninhas em um ...
Ricardo Victoria Filho   +4 more
doaj   +1 more source

Gas-Liquid Chromatographic Determination of Bromacil Residues

open access: yesJournal of AOAC INTERNATIONAL, 1980
Abstract A simple, fast, and accurate method has been developed to determine residues of bromacil (5-bromo-3-sec-butyl-6-methyluracil) herbicide. Following sample extraction, filtration, and concentration, the herbicide is determined using a gas chromatograph equipped with a thermionic nitrogen/phosphorus detector.
K C, Ting, G A, Root, G R, Tichelaar
openaire   +2 more sources

Influência de subdoses de herbicidas e de níveis de nitrogênio na nutrição nitrogenada e na produção de plantas de trigo (Triticum aestivum L. 'IAC 5') Influence of subrates of herbicides and nitrogen levels on the nitrogen nutrition and yield of wheat (Triticum aestivum L. 'IAC 5')

open access: yesPlanta Daninha, 1981
Foi estudado o efeito estimulante de nitrogênio e de subdoses de herbicidas na nutrição nitrogenada e na produ ção de tr igo, cultivado no campo, em dois experimentos (1977 e 1978).
M.L.C. Carelli, R. Deuber
doaj   +1 more source

Efeito de herbicidas residuais, aplicados por vários anos consecutivos, na distribuição do sistema radicular da laranjeira Natal (Citrus sinensis.(L.) osbeck) Effects of residual herbicides, applyed for several years son the root system distribution of 'Natal' orange (Citrus sinensis L. osbeck)

open access: yesPlanta Daninha, 1985
O presente trabalho foi desenvolvido com o objetivo de verificar a influência do uso contínuo de vários herbicidas residuais, sobre a distribuição das radicelas de laranjeiras Natal (Citrus sinensis (L.) Osbeck) enxertadas sobre limão Cravo (Cithus ...
R Victória Filho   +3 more
doaj   +1 more source

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