The seeding rolls/disks are specific to the size of seed planted.
Carefull set up and some testing before setting out to plant an entire field are the keys to success.
Most seeds can be planted by our seeders, some are easier to plant than others for the simple reason that seeds come in different shapes and sizes! Sticky seeds will be nearly impossible to plant. Coated and uncoated seeds must be kept dry at all times for obvious reasons. Keeping these basic principles in mind, very good to excellent results can be obtained. In all cases the performances of our seeders are exceptional with regard to their price.
You will need to order the quantity of rolls/disks equal to the number of rows planted by your seeder.