For soil trace element, the ageing humus had fixed effect. The nascent active humus had effect to promote the activity.
对土壤微量元素,老化的腐殖质有固定作用,新生的活性腐殖质有促进活性作用。
For soil trace element, the ageing humus had fixed effect. The nascent active humus had effect to promote the activity.
对土壤微量元素,老化的腐殖质有固定作用,新生的活性腐殖质有促进活性作用。
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