It was found that the type of the snapping rolls was the main factor affecting the picking performance and the working speed of the harvester had indistinctive effect on the harvesting performance.

• 试验结果表明，摘穗辊辊型是影响摘穗性能的主要因素。在正常工作范围内，作业速度对摘穗性能的影响不大。