华北地区玉米机收籽粒与机收果穗性能及效益初析

摘要

The popularity rate of mechanized grain harvesting was very low in north China.People were lack in cognitive level of mechanized harvest grain.The harvest price,loss rate,time cost and grain quality were compared for two different harvesting methods,i.e.to harvest grain and ear with machine.The results showed that,the cost of machine harvest grain was 5.7％ less than that of harvest ear;the time cost of harvest grain was saved more than 50％.The grain breakage rate of harvest grain was 6％ higher than that of harvest ear,which needs to be improved.The comprehensive effect of harvest seed was good,and it is suitable to be popularized in north China.%华北地区玉米机收籽粒普及率非常低,人们对机收籽粒的认知水平不足.对玉米机收籽粒和机收果穗两种不同收获方式,从收获成本、时间、损失率、籽粒质量等多方面进行比较,结果表明,机收籽粒比机收果穗收获成本可以节省5.7％,时间可以节省50％以上,机收籽粒虽然破损率稍高(比机收果穗高6％),有待进一步改善,但是综合效果好,适合华北地区推广.