关键词: 苹果, 连作障碍, 土壤微生物, 酚酸类物质, 土壤酸化

Abstract:

Apple replant disease（ARD）is an important factor that restricts the sustainable
development of apple industry in China. There are many complex pathogenic factors that cause ARD，and
some of the possible factors are variable between the different regions or orchards of the same region，and
bring about great difficulties to prevent and control ARD. This paper summarized the main causes of
ARD，and the main methods to control ARD，combining the related research in the last 10 years with our
researches，mainly from the changes of microbial community structure in apple replanted orchard soil，
allelopathic effects（phenolic acids），the physical and chemical properties of soil deterioration introduced the mechanism research progress of ARD. Then from the agronomic measures，such as reasonable crop
rotation，intercropping and mixed cropping，deep plowing soil，application of organic materials；soil
disinfection measures，such as chemical fumigation，physical disinfection；resistance breeding measures，
such as breeding of resistant rootstock；biological control measures，such as antagonistic bacteria，
antagonistic fungi，antagonistic plants and so on aspects introduced the progress of prevention and control
of ARD. On this basis，the further study on the mechanism of ARD and the development direction of
prevention and control technology of ARD are put forward.