... ,digging, applying fertilizer, seeding, covering and pressing in one operation.2.It is a air suction fine seeder with seeding grains ... ,sorghum,sunflower,Castor seeds by changing different seeding tray 4.Row space, depth, seed distance and seeding amount can be adjusted ... --5.60 7.00--8.75 9.80--12.25 2-Row Pneumatic precision mini vacuum seeder