Since the urease activity in soil is close correlated with the growth of stem lump mustard and soil metabolism, which is a key indicator of soil ecology and soil fertility.

• 土壤脲酶活性高低反映出茎瘤芥生长和土壤代谢状况，可作为茎瘤芥土壤生态和肥力水平的一个良好指标。