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An overview of the defects on tested field sprayers in Belgium. J. Declercq 1 , B. Huyghebaert 2 , D. Nuyttens 1 1 Institute for Agricultural and Fisheries Research (ILVO), Technology & Food Sciences Unit - Agricultural Engineering Contact : johan.declercq@ilvo.vlaanderen.be

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6 mm

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  1. An overview of the defects on tested field sprayers in Belgium J. Declercq1, B. Huyghebaert2, D. Nuyttens1 1Institute for Agricultural and Fisheries Research (ILVO),Technology & Food Sciences Unit - Agricultural Engineering Contact: johan.declercq@ilvo.vlaanderen.be 2 Agricultural Research Centre (CRA-W) – Agricultural Engineering Department Contact: huyghebaert@cra.wallonie.be In Belgium, the compulsory inspection is based on the analytical principle and focuses on safety, clear and suitable measuring instruments, spray instrumentation and hydraulic equilibrium. The inspection method consists in measuring separately and independently the performances of the different parts of the sprayer to determine possible defects and to establish a precise diagnosis. The defects are divided into three different categories. 6 mm Category I defects are defects that automatically entail a rejection. Faults within this category must be repaired within four months and the sprayer should be submitted for retesting. Category II defects do not result in rejection, but should be repaired by the next inspection during the inspection interval. This means that the user has three years (= one inspection cycle) time to repair these defects. Defects of category III are only added for comment and is aimed to improve the general operation of the sprayer. The user is completely free to follow these comments. An overview of the category I defects of the year 2008 are presented in the added figure. Concerning category II defects, small leakages and different problems with the spray boom (hinges, curvature…) are clearly causing most of the remarks (85%). category I defects The farmers are as much as possible involved in the actual inspection and advice is given to the farmers about possible effects. All test results are registered in an official test report. Since the start up of the inspection in Belgium, farmers became far more aware of the negative effects of a badly maintained sprayer resulting in a significant decrease of the number of rejections. Anyway, continuous information and training of farmers is still necessary to maintain or even improve the current maintenance level of the sprayers 3rd European Workshop on Standardised Procedure for the Inspection of Sprayers in Europe – SPISE 22-24 September 2009, Brno, Czech Republic

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