The PLDS™ Opener provides a 4:3 contour ratio for the seed knife, placing the seed above and to the side of the fertilizer knife.
Just like competitive dual-knife units, the PLDS™ Opener will not guarantee adequate seed to fertilizer separation in all conditions. This close seed-to-fertilizer proximity can result in reduced emergence, especially with higher nitrogen fertilizer rates in dry seeding conditions.
The horizontal knife-to-knife distance of the PLDS™ Opener can be easily adjusted for increased separation, however, this adjustment further increases seedbed disturbance and reduces residue clearance. The solution is to combine the PLDS™ Openers with the Mid Row Bander® Fertilizer Applicators to create the TriMax™ Triple-Shoot Delivery System eliminating the risk of seed damage from toxic fertilizer common to the dual-knife openers.