如何提高玉米收获机械化程度,是农场农业生产过程中一个急需解决的重要问题。一九六六年前,宝泉岭农场种植玉米的面积只占总抪种面积的10%,产量占20%。使用机械直接收获的面积占种植面积的10%左右,而且由于割期较长,特别是在后期收获时,常因玉米茎杆倒伏掉棒严重,损失较大而未能推广。主要是因为现有的联合收获机均不适应直接收获玉米,所以玉米收获机械化程度不高。全场 How to improve the mechanization of corn harvest is an urgent problem to be solved in farm agricultural production. Before 1966, the area planted with corn in Baoquanling Farm accounted for only 10% of the total area and 20% of the total output. The area harvested by direct mechanical harvesting accounts for about 10% of the planting area. However, due to the longer cutting period, especially during late harvesting, it is often not possible to popularize because the corn stalks are lodging severely and losing more. Mainly because the existing combine harvesters are not adapted to direct harvest of corn, so corn harvest mechanization degree is not high. The audience