中文摘要：

以种植长柔毛野豌豆（Vicia villosa Roth.）结合自然生草2、4和6年及各自的清耕除草（对照）苹果园耕作层（0-20 cm）土壤为试材,测定土壤有机质、养分、酶及微生物特性的变化,旨在为长柔毛野豌豆在果园生草中的推广应用提供科学依据。试验结果表明,生草2、4和6年的果园0-20 cm耕作层土壤有机质、全氮、速效磷和速效钾的含量、土壤磷酸酶、脲酶和蔗糖酶活性及土壤微生物呼吸、活性与活跃微生物量大多高于其各自的清耕对照;生草2年的土壤微生物碳源利用能力低于其清耕对照或差异不显著,而生草4年和6年的土壤微生物碳源利用能力均高于其清耕对照。表明果园种植长柔毛野豌豆结合自然生草能全面提升土壤综合肥力。

英文摘要：

In order to provide scientific evidence of application in grown grass，combining with cultivating hairy vetch，the authors measured the change of soil organic，nutrition，and enzyme in plough layer，which was classified by cultivated-hairy vetch，grown-grass for 2，4 and 6 years，and the clean-cultivated apple orchard. The result showed that the plough layer，combined with hairy vetch and grown grass for 2，4 and 6 years，were higher than the control in aspects of soil organic matter，total N，available P and K，the microbial respiration and activity，and the number of active microbes. There were relatively differences in enzymes. The activity of the catalase was apparently lower than the control in rown grass for 2 years，comparing with grown grass for 4 years and grown grass for 6 years. The activities of phosphatase，urease and sucrose were notably higher than the control，yet rare individuals were indistinct. The carbon utilization capacity was lower than the control，including most individuals were not notable. However，other two types of soil were higher than the control in the carbon utilization capacity，and the difference reached the significant level or the super significant level. The results indicated that the method of planting hairy vetch and growing grass could help improve the soil fertility.