O-P in rhizosphere soil decreased when exchangeacidity and total hydrolytic acidity increased.
根际土壤o - P含量随着土壤交换性酸、水解性总酸度的增高而降低。
2
As a result, the cation exchange reaction is predominant in the low acidity region, and the salvation extraction becomes appreciable in the high acidity region.
结果表明，在低酸度区萃取主要按阳离子交换反应进行，在高酸度区溶剂化萃取反应则变得明显。
3
Immediate action shall be taken if the oil is over at its acidity and ion-exchange resin is the most effective way to deal with the acidity of oil.