Natural occurrence of vesicular-arbuscular mycorrhizal (VAM) fungi in Chinese jujube trees was investigated in Zanhuang, Gaoyi, Wangdu county and the garden of Hebei Agricultural University.

• 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。