References of "Mostade, Olivier"
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See detailLa fumure azotée
Destain, Jean-Pierre ULg; Couvreur, Luc; Herman, Jean-Luc et al

in Livre Blanc: Céréales - Gembloux (2009, February 18)

Bilan de l'année écoulée et recommandations pratiques

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See detailFlow rate quality of new flat fan nozzles
Huyghebaert, Bruno; Debouche, Charles ULg; Mostade, Olivier

in Transactions of the ASAE (2001), 44(4), 769-773

Manufacturers of spraying nozzles have established manufacturing tolerances to guarantee the quality of their products. They control, among other things, the new nozzles’ flow rate by comparison with the ... [more ▼]

Manufacturers of spraying nozzles have established manufacturing tolerances to guarantee the quality of their products. They control, among other things, the new nozzles’ flow rate by comparison with the nominal flow rate. When the deviation exceeds a set limit, the nozzles are rejected. A survey carried out among three manufacturers made it possible to determine the manufacturing tolerances and limits that manufacturers impose upon themselves. The flow rates of 1565 new nozzles collected on the market from these manufacturers were measured on a device developed for this study. Different statistical tests assessed the performances and characteristics of the products. The quality standards announced by the manufacturers were not checked for every nozzle. On average, 20% of the new nozzles exceeded the manufacturing tolerances. The average flow rate of the nozzle sets equalled the nominal flow rate. In practice, the probability distribution of the flow rate of new nozzles should be normal. The dispersion of the new nozzle flow rates was slightly higher than the theoretical one. The quality of the products differed from one manufacturer to another. [less ▲]

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See detailComparison by image processing of target supports of spray droplets
Degre, Aurore ULg; Mostade, Olivier; Huyghebaert, Bruno et al

in transaction of the American society of Agricultural engineers (2001), 44(2), 217-222

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See detailCharacterising the spectra of spray droplets on three artificial targets using image analysis.
Degre, Aurore ULg; Mostade, Olivier; Huyghebaert, Bruno et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2000), 65(2b),

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See detailContrôle obligatoire des pulvérisateurs en Belgique: expérience réussie
Huyghebaert, Bruno; Mostade, Olivier; Debouche, Charles ULg et al

Conference given outside the academic context (1997)

The 1st September 1995, the belgian Federal Ministry of Agriculture set up a compulsory control of the sprayers used. All the devices, except for some ofthem, are subjected to a compulsory periodic ... [more ▼]

The 1st September 1995, the belgian Federal Ministry of Agriculture set up a compulsory control of the sprayers used. All the devices, except for some ofthem, are subjected to a compulsory periodic checking. The practical organsization of the control as well as the test procedure are a bit different from the ones of other European countries. They have been chosen on the basis of educational criteria rather than repressive ones. After 20 months of control, the result is encouraging. More than 13 000 sprayers have already been controlled. Less than 5 % of the devices are rejected after a first control. The condition of working sprayers has been improved. At last, this action has made the controlled owner conscious of the problems related to the spreading og agrochemicals. [less ▲]

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See detailCompulsory inspection of crop sprayers already in use in Belgium: Selection of control method
Huyghebaert, Bruno; Mostade, Olivier; Carré, J. et al

in AgEng Madrid 96 (1996)

A European stream leads member countries to take action on sprayer conformity. Volontary inspection of crop sprayers are carried out in several countries. These control methods are not always specifically ... [more ▼]

A European stream leads member countries to take action on sprayer conformity. Volontary inspection of crop sprayers are carried out in several countries. These control methods are not always specifically defined. Other countries, such as Germany, Holland and Belgium, have established a compulsory inspection of crop sprayers already in use. In these cases, inspection methods and practical organisation have been clearly and officially defined. The Belgian Federal Ministry of Agriculture implemented on 04 September 1995 a compulsory inspection of crop sprayers in use in Belgium. Prior to that, the first goal was to choose a method adapted to an “on site” inspection. The control procedure that has been selected for the whole of Belgium is different from that practiced in many countries where the patternator is used. The practical organisation on site is also quite different. [less ▲]

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See detailContribution à l'étude des techniques de mélange retardé des produits phytosanitaires sur les pulvérisateurs agricoles.
Huygebaert, Bruno; Mostade, Olivier; Oestges, O. et al

in Med. Fac. Landbouww. Univ. Gent (1993), 58(2a), 257-264

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See detailProcédure mobile de contrôle des pulvérisateurs.
Mostade, Olivier; Huyghebaert, Bruno; Oestges, O. et al

in Symposium international sur les techniques d'application des produitsphytosanitaires [International symposium on pesticides applicationtechniques]. Proceedings of a conference held in Strasbourg, France,22-24 September 1993. Vol. 2. (1993)

A successful spray application doesn't only depend on the choice of the appropriate chemical product and on the treatment period, but also depends on the user's abilities and the working order of the crop ... [more ▼]

A successful spray application doesn't only depend on the choice of the appropriate chemical product and on the treatment period, but also depends on the user's abilities and the working order of the crop sprayer. The experience shows that these two points often pose a problem. Concerning the equipment, many countries have taken initiatives for the sprayers control. This one is usually free but the tendance is to make it obligatory. The control method implemented in Belgium (Wallon region) is different from the general method based on the use of a spray pattern collector: it is completely mobile and is essentially based on the measure of the pressure at the boom and of the nozzles output. The results show that many sprayers are not in a good working order. [less ▲]

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See detailComparaison du temps de réponse de systèmes électroniques et hydraulique de régulation des debits de pulvérisateur agricole.
Miserque, O.; Debouche, Charles ULg; Mostade, Olivier et al

in Med. Fac. Landbouww. Rijksuniv. (1993), 58(2a), 257-264

Some of the sprayers that have been manufactured over the past few years are fitted with electronic flow control systems. The purpose of these devices is to adjust the flow rate to changes in the working ... [more ▼]

Some of the sprayers that have been manufactured over the past few years are fitted with electronic flow control systems. The purpose of these devices is to adjust the flow rate to changes in the working speed or in the recommended spray volume. The first part of the study compares these electronic systems with one conventional hydraulic flow control (fow metering device) on the basis of their response time to variations in working speed. The study also compares the response time of two current types of electronic flow control systems at various boom widths (controlled by shutting off or opening parts of the boom) or to deliberate changes in the spray volume. Response times are also converted into equivalent treated areas. [less ▲]

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See detailMise au point d'un dispositif de contrôle des pulvérisateurs au champ.
Mostade, Olivier; Leunda, P.; Debouche, Charles ULg et al

in Mededelingen van de Faculteit Landbouwwetenschappen (Rijksuniversiteit te Gent) (1990), 55(3b), 1325-1332

Sprayer control is essential for optimal application of diverse agrochemicals. Optimal application ensures respect for the environment. For the first time, electronic measurement devices have been used to ... [more ▼]

Sprayer control is essential for optimal application of diverse agrochemicals. Optimal application ensures respect for the environment. For the first time, electronic measurement devices have been used to improve sprayer control speed and precision. A chain of measurement devices permits monitoring and recording of information while the sprayer is in motion. This chain is composed of the following components: electromagnetic flowmeter – pressure transducer – impulse wheel, amplifier, transmitter-receiver, recorder and computer. This device is able to control many processes. It allows the continuous recording of instantaneous data flow-pressure-speed, observation of regulation system and punctual fault detection. Control duration is short, especially considering the amount of collected informations. After processing, information about each apparatus can be conveniently stored in a central file. [less ▲]

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