California Agriculture Online
California Agriculture Home  >   Volume 27   >   Number 6  >   Viewing Expanded Abstract

peer-reviewed research article

Diagnosing potassium deficiency by soil analysis

authors

A. L. Brown, Agricultural Experiment Station
James Quick, Agricultural Extension Service and Gerard
Gerard J. De Boer, University of California

publication information

California Agriculture 27(6):13-14. DOI: 10.3733/ca.v027n06p13. June 1973.

abstract

Soil analysis, especially nitric acid extraction of potassium appears to be a very useful means of diagnosing potassium-deficient soils in California. Studies reported here compared two analytical methods for determining soil potassium levels. Plant growth responses were determined by greenhouse pot tests.

author affiliations

A. L. Brown is Lecturer and Specialist in the Agricultural Experiment Station; James Quick is Agriculturist, Agricultural Extension Service and Gerard; J. de Boer is Staff Research Associate. University of California Davis;