The list of drift-reducing nozzles (DRD) has been expanded with the Teejet AITTJ60-11008VP and the Agrotop Softdrop 110-04 and 110-05. Both are classified in DRD class 50%, 75% and 90%.
This is reported by Rijkswaterstaat's Technical Committee for Technology Assessment (TCT). Injection technique with Squall has been added as drift reducing technique (DRT). By adding 0,5% Squall to the spray liquid, the nozzles 1 DRD class are raised. This applies to nozzles with tip of 110/120 degrees and 80/90 degrees and up to and including DRD class of 90%.
The agent is injected into the spray line according to the value of the flow meter in the main line. The amount of Squall and the spray amount must be kept for at least 1 hour or from the start of the spraying and be clearly readable by the supervisor. Adding squall directly to the tank mix is not recognized as DRT.
The Agricult LvS NK80LT has been added to DRT class 75% and 90%. The system consists of a controller, pump(s), and an NK80LT spreader heads. The spray liquid is distributed without pressure by rotating toothed discs. The technology is built on a spreader carried or pulled by a tractor or quad, a cart pushed by hand or as a lance on a backpack sprayer.
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