RAPID ANALYSIS OF CATION-EXCHANGE PROPERTIES IN ACIDIC SOILS

被引：2
|
作者：
QIU, XC [1 ]
ZHU, YQ [1 ]
机构：
[1] ENVIRONM SCI RES INST GANZHOU PREFECTURE,JIANGXI 341000,PEOPLES R CHINA
来源：
SOIL SCIENCE | 1993年 / 155卷 / 04期
关键词：
D O I：
10.1097/00010694-199304000-00009
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
In this paper, ammonium acetate-1,2-diaminocyclo-hexanetetracetic acid is proposed as an extractant for the determination of cation exchange properties of acidic soils. The conditions for the spectrophotometric determination of exchange acidity with ethyl red in soil extracts were studied. Results are in reasonable agreement with those obtained by routine HCl titration after extraction with BaCl2-triethanolamine. Exchangeable bases in the soil extract can be determined with atomic absorption spectroscopy or photometrically using chlorophosphonazo III xylidyl blue I, and flamephotometry. After removal of the extractant, cation exchange capacity can be determined.
引用
收藏
页码：301 / 308
页数：8
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