Problem: Weed competition is a crucial aspect in organic farming sys-tems, especially for predominantly annual crops such as ce-reals and legumes. Sowing density and the spatial arrange-ment of plants play a crucial role in weed control. ***************************************************************************************** Solution: The seeder prototype SEMINBIO®, which was tested on du-rum wheat, optimises seed distribution in the three axes of space. This ensures a fast soil cover by the crop, a rapid and improved uptake of nutrients, and enhanced competitive ability against weeds. ***************************************************************************************** Outcome: Trials with the SEMINBIO® seeder in southern and central Italy showed that the seeder’s sowing layout increased wheat yield, irrespective of the weed presence, and de-creased weed development, if weeds were present, com-pared to ordinary seeders.