为探讨温室草莓连作引起重茬障碍的原因,采用土壤酶学、常规土壤养分测定等方法,对温室草莓重茬2年的土壤酶活性及土壤养分进行了测定和分析。结果表明,与非重茬相比,重茬2年的温室土壤脲酶、碱性磷酸酶、蔗糖酶、多酚氧化酶活性均显著降低;除全氮外,有机质、碱解氮、速效磷和速效钾含量均显著升高。由此认为,重茬导致土壤酶活性降低,土壤主要养分含量升高。 In order to investigate the reason of continuous cropping obstacle caused by continuous cropping of greenhouse strawberries, soil enzyme activities and soil nutrients of greenhouse straw stubble for two years were determined and analyzed by soil enzymology and routine soil nutrient determination. The results showed that the activities of urease, alkaline phosphatase, invertase and polyphenol oxidase in greenhouse soil decreased significantly after two years of continuous cropping compared with non-cropping. In addition to total nitrogen, organic matter, available nitrogen, available phosphorus and available potassium Content were significantly increased. This suggests that cropping caused by reduced soil enzyme activity, soil nutrient content increased.