This system, patented by Bertini,
has the seeding train which cuts a micro-furrow and places the seed at the exact depth.
It obtains ideal seed-to-soil contact and deposits the slug pellets at the same time.
All this is achieved by a single machine in just one operation.

This is a universal drill, able to sow small seeds (cereals and grass) and big seeds (soya and maize). All the seed boxes have plastic feeders for exact metering and constant flow without any wear and tear. Gearboxes that maintain a fixed seed ratio and do not require constant calibration drive them. They are constructed in three sizes (81, 27 and 9).
The seeding units are mounted on a crane-type chassis that enables the distance between the coulters to be altered according to the crop sown. They provide a 100% direct drill system, enabling the 3 basic functions of direct drilling to be achieved:
1) to cut open a micro-furrow with the turbo knife.
2) the seed can then be placed accurately using a set of double discs with a narrow aperture and a pair of revolving metal wheels and a plastic seed firmer.
3) to seal the furrow two v-shaped rear wheels apply a ridging action, leaving the seed in the micro-furrow undisturbed.