Behavior of phosphate in soil extracts using weak unbuffered extracting solutions

被引：5

作者：

Houba, VJG ^{[1
]}

Temminghoff, EJM ^{[1
]}

机构：

[1] Wageningen Univ Agr, Res Ctr, Subdept Soil Sci & Plant Nutr, NL-6700 EC Wageningen, Netherlands

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 1999年 / 30卷 / 9-10期

关键词：

D O I：

10.1080/00103629909370292

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Phosphate concentrations in extracts of soil samples using unbuffered 0.01 M calcium chloride (CaCl2) decreased in time, especially in extracts of calcareous soil samples due to phosphate adsorption on walls of tubes and flasks. To overcome these changes in time, extracts were immediately after centrifugation or filtration acidified to pH 2.0 using hydrochloric acid (HCl).

引用

页码：1367 / 1370

页数：4