EXTRACTION OF SOIL ORGANIC-MATTER UNDER CHEMICALLY MILD CONDITIONS

被引：3

作者：

BECKWITH, RS ^{[1
]}

NAYYAR, VK ^{[1
]}

机构：

[1] CSIRO, DIV SOILS, ADELAIDE, SA 5000, AUSTRALIA

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 1984年 / 15卷 / 03期

关键词：

D O I：

10.1080/00103628409367476

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Large additions of urea greatly increased the effectiveness of some chemically mild extractants of soil organic matter. Brief agitation with an ultrasonic disintegrator also enhanced the action of these mixed solutions. With a range of soils, 0.05M Na4P2O7 in 8M urea extracted at least as much soil C as 0.05M Na4P2O7 in 0.5M NaOH. A solution of 0.3M NaHCO3 in 8M urea usually extracts less C but introduces only Na+ as a mineral contaminant.

引用

页码：295 / 307

页数：13

共 8 条

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