中文摘要：

基于LabView软件平台开发了功耗测试系统。采用相位差原理,对船式旋耕埋草机的螺旋刀辊进行了中稻收获后的水田适度耕整与秸秆埋覆还田功耗试验。在功率测试平台上对测试系统进行了标定,结果显示系统测量误差在5%以内。在田间对螺旋刀辊作业功耗进行了实时检测,通过分析各因素对功率消耗的影响,得到了船式旋耕埋草机较优作业模式：实行2次耕整,刀辊转速310 r/min,其中第1次作业耕深55 mm,其平均作业功耗为7.13 kW,第2次作业耕深达到110 mm,其平均作业功耗为7.59 kW,两次耕整后秸秆埋覆率达到95%以上。

英文摘要：

Based on the principle of phase difference,the actual power consumption of the rotary tillage and stubble-mulch knife roller in mid-season rice straw field was tested by using magnetic torque sensor.The processing procedure was based on LabView.The system was calibrated on the experiment bench.The results showed that accuracy was lower than 5%.The results of field testing showed that the tillage depth of the machine and the rotate speed of axis greatly influenced the power consumption.The better operating status were as follows： operating power consumption of the first tillage with 55mm of depth and 310r/min of roller speed,its average was 7.13kW;operating power consumption of the second operations with 110mm was 7.59kW,the ratio of straw returning was higher than 95%.