Gerelateerde projecten

  • Optimalisatie van de spuitapparatuur en –techniek in sierteeltgewassen

    Project: project typesOnderzoeksproject

Bekijk grafiek van relaties

Flemish greenhouse growers predominantly use handheld spray guns and spray lances for their crop protection purposes, despite the heavy workload and high risk for operator exposure associated with these techniques. These spray application techniques have shown to be less effective than spray boom equipment under many conditions. Handheld spraying techniques are less expensive, however, and they are more flexible in use. Many Flemish growers also erroneously believe that high spray volumes and pressures are needed to assure good plant protection.
This paper summarises the results of a whole series of laboratory trials to optimize the depositions of a horizontal spray boom system in a dense ivy crop with a horizontal leaf position. The effect of nozzle type, spray volume, spray direction, air assistance and the number of passes was evaluated. In total, seventeen spray application techniques were evaluated.
Overall, the use of air assistance resulted in the most uniform spray distribution because of an improved spray penetration and a good coverage of the lower sides of the leaves. The use of air assistance was most effective when combined with a medium droplet size extended range flat-fan nozzle at 3.0 bar with a 30° forward or a standard 0° spray angle and a spray volume of 1000 L ha-1. Without air assistance, a 30° forward angle lead to higher spray depositions within the canopy as well.

Originele taal-2Engels
TitelInternational Advances in Pesticide Application
EditorsP G Anderson, P Balsari, P I Carpenter, S E Cooper, C R Glass, B Magri, P C H Miller, C Mountford-Smith, T H Robinson, D Stock, W A Taylor, J van de Zande
Aantal pagina's8
Volume114
Plaats productieWarwick, UK
UitgeverijAssociation of Applied Biologists
Publicatiedatum2012
Pagina's355-362
StatusGepubliceerd - 2012
EventInternational Advances in Pesticide Application (2012) - Wageningen, Nederland
Duur: 10-jan-201212-jan-2012
http://www.aab.org.uk

ID: 224587