The
sowing wheel delivers
the seed. Then
it is embeded perfectly
into the track.
The
sowing depth is
detemined by the
front press
wheel (1) through
a spindle and a
calibration scale.
The
best version of
the rear press
wheel (3) is
the nobble press
wheel, which nobbles
solidify soil around
the seed.
The middle press
wheel (3) CAN
be added to improve
results.