Abstract:Controlled traffic with conservation tillage (CTCT) can reduce soil compaction, thus to improve operation performance of agricultural machine, by separating wheel track and crop zone. The effect of CTCT on operation resistance force was researched in annual two crops region in Northern China. The rolling resistance, opener resistance and total draft between controlled and non-controlled traffic treatments were analyzed. In subsoiling, wheat and maize planting, compared with non-controlled traffic with conservation tillage, CTCT total draft reduced by 14.6%, 13.3% and 13.3%, rolling resistance reduced by 26.9%, 21.9% and 19.7%, averaging 22.9%, working resistance reduced by 7.5%, 7.2% and 12.4%, averaging 8.8%. Opener resistance reduced 22.0% averagely in controlled traffic treatments than that in non-controlled traffic treatments. As the resistance decreased, fuel consumption in controlled traffic treatment reduced by 17.6%, 12.4% and 9.1% in three operations. Results showed that controlled traffic conservation tillage reduces agricultural machine working resistance and fuel consumption in field operation.