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本研究对河北省赞皇县、高邑县、望都县、河北农业大学标本园等地枣树的ＶＡ菌根自然侵染率进行了调查。结果表明：所调查的枣树均有ＶＡ菌根菌侵染，但ＶＡ菌根的自然侵染率因立地条件、树龄、品种不同而异。树龄越大，侵染率越高；土壤肥力高或过低均不利菌根菌的侵染。
In this study, the natural infection rates of VA mycorrhizas in jujube trees in Zanhuang County, Gaoyi County, Wangdu County and Hebei Agricultural University were investigated. The results showed that all the investigated jujube trees had VA mycorrhizal fungi infection, but the natural infection rate of VA mycorrhizae varied according to the site conditions, tree age and varieties. The larger the tree age, the higher the infection rate; the higher or lower soil fertility were unfavorable Mycorrhizal fungi infection.