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提出并研制了一种具有阶梯形内窝定量孔的玉米精密排种器———组合内窝孔玉米精密排种器。通过试验研究可知 ,只要适当地选择充填孔和阶梯形内窝定量孔的形状和尺寸 ,该排种器可对不同品种的玉米种子在不分级的情况下达到精播要求。
Proposed and developed a precision-type corn with a step-shaped inner hole quantitative seeding device - a combination of nest hole precision corn seeder. Through the experimental study shows that, as long as the appropriate choice of filling hole and the shape and size of the hole in the step-shaped nest, the seed seeker can achieve the precision sowing requirement for different varieties of corn seed without grading.