The seed flow properties of the manufactured seeds are systematically tested for their "drillability" using several test benches and commercially available seed drills. Random samples are taken from each and every processed seed batch and tested for caliber precision, non-abrasion and sowability.

The results of these regular quality controls are mirrored in manufacturers' "User's Guide - Operating instructions" in the chapter on correct adjustment of seed drills.

Cooperative partnership between the manufacturers ensures compliance with recommended sowing densities and uniform sowing, thereby assuring first-class harvest quality.