A virtual spreader to overcome experimental limits: Example of use to deepen the meaning of the transverse coefficient of variation - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Communication Dans Un Congrès Année : 2021

A virtual spreader to overcome experimental limits: Example of use to deepen the meaning of the transverse coefficient of variation

Résumé

Nowadays, centrifugal spreading is the most used method to apply fertiliser in fields. Numerous technical developments have improved spreaders to reach high precision applications. Nevertheless, these developments have never taken into account the influence of the spreading velocity variation on the shape of the spread pattern. However, practical examples show that speed variations regularly happen in the field. For instance, high speeds applications require punctual slowing down because of: - Trees or posts; - Slopes, hills; - Field borders/ends. Technical devices already exist to avoid the influence of the travel speed on the disc rotation speed and on the application rate in fields but these devices do not counterbalance the spread pattern changes that are due to spreader travel speed variations. The present study characterizes and quantifies the impact of the spreading speed on the spatial distribution of fertilizers and presents a correction method on the spreader. It also presents an evaluation of the ecological performances of this proposed correction in various conditions. Finally it presents the real implementation on a real spreader and its integration.
Fichier non déposé

Dates et versions

hal-03576892 , version 1 (16-02-2022)

Identifiants

  • HAL Id : hal-03576892 , version 1

Citer

Emmanuel Piron, Tien-Thinh Le, Denis Miclet, Lionel Léveillé, Gwennvel Arribard, et al.. A virtual spreader to overcome experimental limits: Example of use to deepen the meaning of the transverse coefficient of variation. 4th SIMA AgriTech Day Axema, Oct 2021, Nantes, France. pp.105-110. ⟨hal-03576892⟩
34 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More