References of "Schiffers, Bruno"
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See detailUse of rotary atomiser to optimize retention on barley leaves while reducing driftable droplets
Ouled Taleb Salah, Sofiene ULg; Massinon, Mathieu ULg; Boukhalfa, Hassina dite Hafida ULg et al

in International Advances in Pesticide Application, Aspects of Applied Biology 122 (2014, January)

Controlled Droplet Application using rotary atomiser is based on an improved control of droplet size and trajectory comparatively to hydraulic nozzles. On the basis of literature, it was stated that the ... [more ▼]

Controlled Droplet Application using rotary atomiser is based on an improved control of droplet size and trajectory comparatively to hydraulic nozzles. On the basis of literature, it was stated that the use of 60° forward angled spray combined with the narrow drop size distribution of a rotary atomiser could lead to low drift and high retention on monocotyledonous and superhydrophobic weeds at early stage. A Micromax120 atomiser was tuned to emit 270 µm VMD, 60° angled forward, to increase interception by the canopy structure. A spray mixture containing a superspreader adjuvant was used to avoid drop bouncing. An increase of spray retention comparatively to a Teejet 11002 at 1.4 bars was observed, although not proved statistically significant by these preliminary trials. On the drift side, the tilted spinning disc seemed to be advantageous since droplet spectra contains a low percentage of droplets under 100 µm and presents an ejection velocity of 25 m.s-1 at 5000 RPM. The spray drift was reduced about 50%. However, these setting were not found as efficient as expected. Indeed, angled spray proved to be more sensitive to advection and turbulence, as the spray was more exposed to the airflow than for the vertical position. It appears that angling the spray and choosing a drop size spectrum with a Volume Median Diameter as big as 270 µm is not sufficient to reduce significantly this issue. Some alternatives as decreasing the emission height are possible with angled sprays but require height control that seems difficult to reach in practical situations. [less ▲]

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See detaileLearning COLEACP : un dispositif de formation au service des professionnels du secteur agricole en Afrique
Prunier, Emmanuelle; Le Hung, Florian; Schiffers, Bruno ULg

in ELearning Africa 2014 - Book of Abstracts (2014)

Le dispositif de formation à distance du COLEACP (Comité de Liaison Europe-Afrique-Caraïbes-Pacifique) est une composante d'un système complet de formation dédié au renforcement des capacités des ... [more ▼]

Le dispositif de formation à distance du COLEACP (Comité de Liaison Europe-Afrique-Caraïbes-Pacifique) est une composante d'un système complet de formation dédié au renforcement des capacités des opérateurs des filières agricoles des pays ACP (Afrique Caraïbes et Pacifique). [less ▲]

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See detailChapitre 9. Retour d'expériences : institutions internationales. Partie 9.4.: Approche opérationnelle du PIP dans le soutien des petits producteurs africains face aux standards privés
Schiffers, Bruno ULg; Stinglhamber, Guy

in Hammoudi, Abdelhakim; Grazia, Cristina; Surry, Yves (Eds.) et al Sécurité sanitaires des aliments (2014)

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See detailDIIGO : COLLABORATIVE SOCIAL BOOKMARKING INTEGRATION IN AN INTERACTIVE COURSE
Colaux, Catherine ULg; Schiffers, Bruno ULg

in Edulearn12 Proceedings (2012)

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See detailLa traçabilité
Schiffers, Bruno ULg

Book published by COLEACP (2011)

Au sens étymologique, la « traçabilité » est liée à la « trace » qui, au sens figuratif est une « marque laissée par un événement ». Tracer peut aussi signifier « indiquer la voie à suivre » ou encore « ... [more ▼]

Au sens étymologique, la « traçabilité » est liée à la « trace » qui, au sens figuratif est une « marque laissée par un événement ». Tracer peut aussi signifier « indiquer la voie à suivre » ou encore « marquer les contours ». Le mot « traçabilité », au sens de la possibilité d’identifier l’origine et de reconstituer le parcours (d’un produit), depuis sa production jusqu’à sa diffusion, est relativement récent1. Née dans le milieu des années 80, la traçabilité répondait alors à un simple souci logistique : elle garantissait un contrôle des flux de marchandises au sein d’une chaîne de partenaires, permettant de sérieuses économies. [less ▲]

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See detailLutte biologique et protection intégrée
Schiffers, Bruno ULg; Wainwright, Henry

Learning material (2011)

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See detailProduire de façon durable et responsable
Schiffers, Bruno ULg; Samb, Babacar

Learning material (2011)

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See detailOrganiser et animer des formations
Schiffers, Bruno ULg; Schiffers, Christophe ULg

Learning material (2011)

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See detailPrincipes d’hygiène et de management de la qualité sanitaire et phytosanitaire
Schiffers, Bruno ULg; Moreira, Christine

Learning material (2011)

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See detailRéglementation internationale et standards privés
Schiffers, Bruno ULg; Moreira, Christine

Learning material (2011)

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See detailSécurité des opérateurs et Bonnes Pratiques Phytosanitaires
Schiffers, Bruno ULg; Mar, Amie

Learning material (2011)

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See detailAnalyse des risques et autocontrôle en production
Schiffers, Bruno ULg; Samb, Babacar

Learning material (2011)

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See detailPrincipes d’hygiène et de management de la qualité sanitaire et phytosanitaire
Schiffers, Bruno ULg; Samb, Babacar; Knops, Jérémy

Learning material (2011)

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See detailCAPACITY BUILDING OF ACP EXPERTS AND MIDDLE MANAGERS
Schiffers, Bruno ULg

in EDULEARN10 Conference (2010, July)

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See detailEvaluation of realtime spray drift using RTDrift Gaussian advection-diffusion model
Lebeau, Frédéric ULg; Verstraete, Arnaud ULg; Schiffers, Bruno ULg et al

in Spanoghe, Pieter (Ed.) COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES (2009, May 19)

A spray drift model was developed to deliver real time information to the pesticide applicator. The sprayer is equipped with sensors to deliver real time measurement of operational parameters as spray ... [more ▼]

A spray drift model was developed to deliver real time information to the pesticide applicator. The sprayer is equipped with sensors to deliver real time measurement of operational parameters as spray pressure, boom height, horizontal boom movements and geolocalization. The spray droplet size spectrum as a function of pressure was characterized using PDI measurements. Wind speed and direction were measured using a sprayer mounted 2-D ultrasonic anemometer. For each successive boom position, a diffusion-advection Gaussian tilting plume model is used to compute the spray drift deposits downwind. Drift is computed independently for each droplet classes and each nozzle based on the operating parameters. Field trials were performed on a test plot in various wind conditions. The ground drift was measured for different drift distances using fluorimetry analysis. Results show that drift deposits are mainly affected by wind speed and direction what was correctly accounted for by the model. Short distance drift deposits values were overestimated by the model while long distance drift was underestimated. It appears that this most probably origins from embarked wind speed measurements and diffusion parameter. It is concluded that a treatment of embarked wind speed and diffusion measurement should be used to minimize these errors. [less ▲]

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See detailPlant protection at a crossroads in ACP countries
Schiffers, Bruno ULg

in Tunisian Journal of Plant Protection (2009), 4(1),

In Africa, and many other countries in the southern hemisphere (ACP - African, Caribbean and Pacific states), small farmers still practice subsistence farming, and the vast majority of producers of fruits ... [more ▼]

In Africa, and many other countries in the southern hemisphere (ACP - African, Caribbean and Pacific states), small farmers still practice subsistence farming, and the vast majority of producers of fruits and vegetables cultivate their crops over small plots of land, often for just a few weeks or a few months of the year. [less ▲]

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See detailFormaldehyde in cultivated mushrooms: a negligible risk for the consumer
Claeys, W.; Vleminckx, C.; Dubois, A. et al

in Food Additives & Contaminants (2009), 26(9), 1265-1272

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See detailEnvironmental aspects in plant protection practices of non-agricultural pesticide users : case study of communes and the ministry of public works and transport (MET) of the Walloon region (Belgium)
Godeaux, Denis; Schiffers, Bruno ULg; Culot, Marc ULg

in Communications in Agricultural and Applied Biological Sciences (vol. 73) (2008)

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March ... [more ▼]

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March 2007, two surveys were conducted of 97 Walloon communes and 65 districts of the Walloon Ministry of Public Works and Transport (MET) (General Directorates for Motorways and Roads and for Waterway Infrastructure). The questionnaire (26 questions on six topics) was sent by e-mail or fax, with a response rate of 60 out of 97 communes and 33 out of 65 districts. This article describes the environmental aspects of the surveys (health-related aspects are the subject of separate article). The surveys have brought to light a number of good practices (including zero pesticides) and a growing awareness of environmental issues among non-agricultural users. However, bad habits, legislation infringements and a failure to follow good plant protection practice are still a problem and pose major environmental risks (in the form of water pollution from pesticides). Information, awareness-raising and training therefore remain a priority for nonagricultural users. [less ▲]

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See detailImpact of the plant protection practices on the operators' exposure: survey by the communes and ministry of equipment and transport (MET-RW)
Godeaux, Denis; Schiffers, Bruno ULg; Culot, Marc ULg

in Communications in Agricultural and Applied Biological Sciences (2008)

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March ... [more ▼]

In order to gain a better understanding of non-agricultural pesticide use and to prepare the legislative and technical dossiers required under the Water Framework Directive, between October 2006 and March 2007, two surveys were conducted of 97 Walloon communes and 65 districts of the Walloon Ministry of Public Works and Transport (MET) (General Directorates for Motorways and Roads and for Waterway Infrastructure). The questionnaire (26 questions on six topics) was sent by e-mail or fax, with a response rate of 60 out of 97 communes and 33 out of 65 districts. This article describes the health-related aspects of the surveys (environmental aspects are the subject of separate article). The surveys have brought to light a number of bad practices and a growing awareness of the non-agricultural users with respect to health risks. However, bad habits, legislation infringements and a failure to follow good plant protection practice are still a problem and pose major health risks (which endanger the operator and the public). Information, awareness-raising and, especially, training of people therefore remain a priority for nonagricultural users. [less ▲]

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