|
|
Article: A laboratory study of application of basalt dust to highly weathered soils: effect on soil cation chemistry.(Statistical Data Included)
- Article from:
- Australian Journal of Soil Research
- Article date:
- July 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Abstract
Surface (0-10 cm) samples from 7 highly weathered soils in tropical coastal Queensland were incubated for 3 months at room temperature and at field moisture capacity with basalt dust applied in 2 size fractions: [is less than] 150 [micro]m and 40 [micro]m. The basalt application was mixed at 0, 1, 5, 25, and 50 t/ha to cover situations of moderate applications as well as where the amendment might be banded to achieve high local concentrations. Basalt dust application caused desirable increases in soil pH, reduced the content of exchangeable acidic cations, increased soil cation exchange capacity, and increased the content of base cations in all soils.
...