Under the conditions of no-tillage and tillage, the traction and the haulage power of openers on the wheeltrack and the non-compacted bed were measured in-step with a portable datalogger.

• 利用测力数据采集系统，在免耕和已耕地条件下，对凿形开沟器在压实区和非压实种床区开沟所需水平牵引力和牵引功率进行了同步测量。