SOWING HEART
PRECISE SINGULATION
The mechanical sowing heart of the Unicorn operates as an internally filled drill, with chamber wheel speeds which correspond to the normal sowing speed in practice. The adjusted chamber speed of the bearing borne chamber wheel minimises bounce and roll impulses, thus increasing the precision of seed placement. Unicorn is the flexible allrounder, not only for conventional sowing but also for mulch sowing, fitted with electronic e-drive II. WITH UTMOST PRECISION PLACEMENT
Lowest standard deviation = High seed placement + Best plant distribution
5
1
Specially moulded seed cells around the edge of the cell wheel pick up individual pellets from the seed chamber , with any surplus pellets falling back into the second seed chamber. With the rotation of the special hardened cell wheel the seeds are transported anti- clockwise in the direction of the coulter. A standard cover ring protects the seed heart from sand and dust. This minimises friction and wearing of the seed heart and cell wheel. Along the hardened scraper ring the seeds are forwarded to the coulter. Finally a precise ejector pin supports the exact dropping time of the seeds.
Underneath the cell wheel there is the opto-electronic sensor which controls the correct function of the seed heart. In case of missing seeds, the sensor transfers a signal to the terminal. The opto-electronic sensor also serves as a low level sensor. Different coulter types are available: a standard and a deep one for sandy soil conditions. The coulters form a V-shaped seed furrow for perfect placement. The seed hopper with 9l content for approx. 1.5 packages beet seeds, is made from special plastic. This provides easy emptying and avoids sticking of e.g. coating.
Field emergence and seed placement of sugar beets
2,54
2,46
2,5
2,23
2
2,25
6
2
1,62
1,5
1,21
3
1
0,98
0,95
7
0,5
0
4
Mulch
Plough
Exact seed placement Kverneland's precsion drill achieved the lowest standard deviations both in mulch sowing or after plough.
KVERNELAND UNICORN
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