牡丹江国营农场管理局种植青贮玉米作饲料已有30余年历史。从两个农场的12个生产队统计,平均每个生产队青贮玉米播种面积在1000亩以上。青饲料的收获从1960年开始,就以青饲料联合收获机进行。机型有E—281,9SQ—10和CK—2.6等几种。对三种机型的生产率和作业成本作了统计并以这些数据为基础进行数学模型处理,并计算结果,作业费用以国产9SQ—10机型最低。 Mudanjiang State Farm Management Bureau silage corn planting for more than 30 years of history. According to statistics from 12 production teams in two farms, on average, the silage corn sown area per production team is above 1,000 mu. Harvesting of green fodder began in 1960 with a green forage harvester. There are several models E-281, 9SQ-10 and CK-2.6. The productivity and operating costs of the three models were calculated and the mathematical model was processed based on these data. The results were calculated, and the operating cost was the lowest among domestic 9SQ-10 models.