Combining with those conclusions,it can be inferred that the threshold of actived Al toxicity in the rhizosphere soil on buckwheat was between 0.106~0.143 mg/g,while that on gold buckwheat was between 0.046 ~ 0.057 mg/g.

• 因此；我们推断在根际土壤活性铝溶出量为0.；106~0