通过压实试验 ,分析了无压实以及小型拖拉机、中型拖拉机和联合收获机压实等处理方式的土壤容重、入渗率和耕作阻力。在此基础上 ,进行了两年的固定道耕作试验 ,结果表明 ,机具随机进地行走会造成对土壤的严重压实 ,降低土壤水分入渗 ,增加作业能耗 ,而固定道能够改善土壤结构 ,提高土壤蓄水能力 ,减轻地表径流 ,提高土壤作业适时性和准确性 ,在目前固定道占地 2 0 %的情况下 ,总产量没有减少 Through compaction tests, the bulk density, infiltration rate and tillage resistance of soil without compaction and compaction of small tractors, medium tractors and combine harvesters were analyzed. On this basis, a two-year trial of fixed tillage has been carried out. The results show that the random walk of the equipment can cause severe compaction of the soil, reduce soil moisture infiltration and increase the energy consumption of operation, while the fixed road can improve the soil structure , Increase soil water storage capacity, reduce surface runoff and improve the timeliness and accuracy of soil operations. With the current fixed land occupation of 20%, the total output has not decreased