Air-assisted sprayers for application in vine, orchard and similar crops

Autor: G. Bäcker, H. Ganzelmeier, H. Göhlich
Rok vydání: 1996
Předmět:
Zdroj: EPPO Bulletin. 26:53-58
ISSN: 1365-2338
0250-8052
DOI: 10.1111/j.1365-2338.1996.tb01528.x
Popis: Spraying in so-called space cultures (orchards, vineyards) is determined by two main aims which require contrary technical measures for their realization: (1) optimal even distribution of droplet deposition on the target. This generally requires sufficient air assistance of droplet transportation and penetration in order to bridge the distance between the nozzle outlet and the target; (2) the surplus energy which normally exists should be minimized in order to avoid any droplet flow outside the target. Several possibilities exist to approach these requirements: (1) optimal blower design and correct adjustment for each specific purpose; (2) catching and recycling of misdirected droplets by recycling units; (3) sensoring of gaps in the canopy and activation of a nozzle shut-off. The legal requirements of the BBA are given, together with the results of experiments on drift and ground deposition of chemicals from air-assisted sprayers, with special attention to recycling units and sensored sprayers.
Databáze: OpenAIRE
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