As a result, the method of using airslake-coal to produce potassium fertilizer including humic acid was varied with different crops.
因此，在利用风化煤生产含腐
肥时，应根据作物类型选择
艺路线。
As a result, the method of using airslake-coal to produce potassium fertilizer including humic acid was varied with different crops.
因此，在利用风化煤生产含腐肥时，应根据作物类型选择艺路线。
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