Coated urea application increased the activities of polyphenol oxidase, phosphatase, and urease, which were significantly correlated with soil nutrient factors.

• 结果表明，施用包膜控释尿素比普通尿素能明显提高土壤有机质、全氮、碱解氮、硝态氮、铵态氮、速效钾含量，降低了土壤速效磷含量；