In order to investigate the effects of tyre-induced soil compaction on soil properties and crop root system under no-tillage condition in North China,a three-year(2013—2016) field experiment was carried out in Hebei Province.Four treatments,including no-tillage(NT),compaction lane under notillage(CNT),subsoiling tillage under no-tillage(STNT) and subsoiling tillage in compaction lane under no tillage(CSNT),were performed with randomized complete block design,with three replications for each treatment.The ef...