MD DISC
MINIMAL SOIL DISTURBANCE
CREATING THE IDEAL STRIPE OF SEEDBED
The u-drill with MD disc is an excellent choice with the requirement for minimal disturbance and/or cutting through and seeding into high volumes of residue. the MD disc unit is ideal for use in cover crop rotations. The crop is laid down by the wheel packers of the u-drill for improved decomposition and reduced emergence of grass weeds that are yet to germinate. The MD disc design (Ø 430mm) allows the fluted blade to clear the residue vertically, providing improved cutting and penetration. This reduces the risk of ‘hairpinning’ where the residue is pushed into the seed slot preventing the seed from having good soil contact, resulting in poor germination and establishment. The soil between each MD disc is not disturbed allowing improved weed germination control and ability to seed into cover crops. Each MD disc is in line with the following CD coulter, creating a mini seedbed in a 30-50mm strip of soil where the seeds will be placed. This provides every row with equal growing conditions. The MD disc is protected by a rubber shock system and mounted individually with maintenance-free double ball bearings which are exclusively developed for extreme soil conditions. A maxium working depth of 100mm is possible.
A mini-seedbed of 3-5cm
Oats sown in cover crop mid of March
Clean cut with less soil movement
Flutes enter the soil perpendicular to the ground for maximum cutting performance while requiring less down pressure. The same flutes exit the soil parallel to the ground for a controlled soil release. The clearing and cutting of the crop residue and soil aggregates within the zonal seeding profile ensures the ideal environment for residue decomposition and subsequent seeding zone for the CD coulter. The MD disc have been designed for vertical penetration through the flutes. The blade keeps turning, penetrating and cutting even in the most challenging conditions. The MD discs offer excellent slicing to reduce hairpinning at all speeds, ranging from 7 to 15 km/h. The wavy profile and angle of the discs create a finely tilled strip directly in front of the CD seed coulter. With the MD disc, a sowing distance of 16.7cm is possible.
Oats emergence beginning of May
KVERNELAND U-DRILL
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