... -well known brand corn seeder with ISO90011. Pneumatic planter/corn drill,multi-purpose,for corn,soybean,cotton,and other large grained ... depth(mm)Under the seeds 50mmFertilization (kg/Acre)0-460(adjustable)Sowing depth(mm)20-50Working speed≤4km/hWorking efficiency(Acre ... rate92%Empty hole rate3% 6 rows 2BYQFH-6 corn seed drill,corn planter,precision pneumatic planter,corn seeder