摘要： 用化学浸提法研究了有机酸对不同合成磷酸盐（Ca2-P、Ca8-P、Ca10-P、Fe-P和Al-P）的活化作用。结果表明：柠檬酸、草酸、酒石酸和苹果酸能明显促进不同磷酸盐中磷的释放；有机酸对磷酸盐的活化与有机酸种类、浓度和磷酸盐种类关系密切，磷酸盐的活化随着有机酸浓度的增加而增加，不同有机酸活化磷酸盐能力从大到小的次序为柠檬酸、草酸、酒石酸、苹果酸，不同磷酸盐活化的难易程度是Ca2-P＞Ca8-P＞FePO4＞Ca10-P＞AlPO4。
关键词:
低分子量有机酸,
磷酸盐,
磷活化
Abstract: The chemical extraction was used to study the effect of organic acids on phosphorus release from different synthetic phosphate compounds.It was indicated that phosphorus release was significantly stimulated for all of 5 synthetic phosphate compounds tested,and positively correlated with the concentration of organic acid.The ability of organic acids in mobilizing phosphorus from synthetic phosphate followed the order:citricoxalictartaricmalic acid.The extent of phosphorus mobilized from synthetic phosphate compounds followed the order:Ca2-P＞Ca8-P＞FePO4＞Ca10-P＞AlPO4.
Key words:
Low-molecular-weight organic acids,
Synthetic phosphate compounds,
Mobilization
中图分类号:
陆文龙, 曹一平, 张福锁. 低分子量有机酸对不同磷酸盐的活化作用[J]. 华北农学报, 2001, 16(1): 99-104. doi: 10.3321/j.issn:1000-7091.2001.01.019.
LU Wenlong, CAO Yiping, ZHANG Fusuo. The Effect of Low-molecular-weight Organic Aci dson Phosphorus Release from Different Phosphates[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(1): 99-104. doi: 10.3321/j.issn:1000-7091.2001.01.019.