HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (15): 122-125.doi: 10.14088/j.cnki.issn0439-8114.2020.15.024

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Study on the correlation between potassium dichromate external heating method and ASI for soil organic matter determination

HUANG Xiang1, DU Lei1, HONG Juan1,2, CHEN Gang1,2, WANG Su-ping1, LIAN Zhi-cheng1, ZHANG Gui-you1, JIANG Li1, ZHANG Li-hong1, YE Li-xia1,2   

  1. 1. Wuhan Academy of Agricultural Sciences, Wuhan 430000, China;
    2. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2019-09-02 Online:2020-08-10 Published:2020-09-24

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Abstract: The correlation between ASI method and potassium dichromate external heating method for soil organic matter determination is compared. The results showed that under neutral and alkaline soil conditions, the ASI method and the potassium dichromate external heating method were significantly positive correlation, and there was a certain proportion coefficient between the test values of the two methods.

Key words: organic matter, potassium dichromate external heating method, ASI method, soil

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