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播量和株（穴）距的均匀性是播种质量中最重要最难以控制的指标，它们由排种器和其它工作部件，及辅助工作部件协调完成，其中排种器是关键。我区棉花铺膜播种机机械式排种器类型一般有充种式、舀充式、勺式和盒式等，其中勺式排种器占９６％以上。勺式排种器的结构和其调节方?
The uniformity of sowing distance and plant (hole) spacing is the most important and difficult indicator of seeding quality. They are coordinated by seed metering device and other working components and auxiliary working components, of which the seed metering device is the key. Cotton padding planter in our district Mechanical seeding types are generally filling type, scoop filling type, scoop type and cassette type, among which scoop type seeding device accounts for more than 96%. The structure of the spoon-type seed metering device and its regulation?