|
South Central MN | It wouldn't necessarily be constant down the tube at different ground speeds. Theoretically the higher seed disc speed at higher ground speeds could impart a higher initial velocity. How much that affects things I don't know but we're talking about fairly small differences having big affects in spacing here.
The spacing is theoretically identical at different ground speeds. As ground speed increases, meter speed increases and so seeds/inch should remain the same. Of course, that doesn't happen due to seed bouncing in the tube on the way down.
I'd wager that the down force system's reduced effectiveness at high speeds leads to the vast majority of misplaced seeds at higher speed in a standard planting setup. A bump that is corrected over a distance of 6" at slower speed might be corrected over 2ft at higher speed. The higher speed would have more seeds in the tube bouncing around over a longer linear distance, leading to more inaccuracy. | |
|
How fast with “non hi speed” planters
