Research on Lecher IDK 90 0067 C and AD 90 01 C spray nozzles for drift reduction classification

The nozzle types Lechler IDK 90 0067 C and AD 90 01 C were investigated to classify the drift reduction potential for downward spray applications at a liquid pressure of 3.0 bar and 3.5 bar, respectively. For the AD 90 01 C nozzles, also the drift reduction potential for upward and sideways applications was investigated at 3.5 bar. The tests followed the procedure described in the Measurement Protocol of the TCT. The uniformity of the spray distribution below a sprayer boom was tested on a patternator at the appropriate nozzle height (for these 90-degree nozzles lowered to 0.30 m). The resulting coefficient of variation (CV) was less than 10%. Measurements of droplet sizes and velocities were done using a PDPA system. For the DRD75 classification for downward spraying, the results of these droplet measurements were used in the IDEFICS spray drift model. Spray drift deposits on a standardized ditch were computed, from which the drift reductions compared to the reference situation were derived. The nozzle type IDK 90 0067 C could be classified as DRD75 at a liquid pressure of 3 bar for downward spray applications. The AD 90 01 C nozzle type could be classified as DRD50 at 3.5 bar liquid pressure for downward spray applications, based on a comparison of the drop size characteristic V100. For upward and sideways spray applications, the latter nozzle type could be classified as DRD75 at 3.5 bar liquid pressure.

Bibliographic Details

Main Authors:	de Hoog, D.C., Holterman, H.J.
Format:	External research report biblioteca
Language:	English
Published:	Wageningen Plant Research
Subjects:	Life Science,
Online Access:	https://research.wur.nl/en/publications/research-on-lecher-idk-90-0067-c-and-ad-90-01-c-spray-nozzles-for
Tags:	Add Tag No Tags, Be the first to tag this record!