1. The precise seed drill is suitable for tilled field 2. It can drill corn, soybean, sorghum, cotton and oil sunflower 2BQ-4 Pneumatic Precise Seed Drill2BQ-4 Pneumatic Precise Seeder, is a kind of multi-functional integral agricultural machine. It is suitable for drilling and fertilizing on the ploughed or tided field. By replacing different sprocket and seeding plate to change the distance of ...