... ,rice,potato), straw chopper and machine parts. Specification of JY-YB-61. Pneumatic planter/corn drill,multi-purpose,for corn ... spacing can be adjusted by replaced seed suction disc. JY-YB-6 is mainly used in sowing corn and ... sure that the fertilizer should be deeper than seeds for 40 mm. 6.The parallel linkage contour may ensure the ... drill,corn planter,precision pneumatic planter,corn seeder JY-YB-6