Diagnosing potassium deficiency by soil analysis
AuthorsA. L. Brown
Gerard J. De Boer
Authors AffiliationsA. 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.
Hilgardia 27(6):13-14. DOI:10.3733/ca.v027n06p13. June 1973.
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.
Also in this issue:Reorganization of University of California's agricultural experiment station
Evaluation of chemical treatments on pear, '70, '71
Streptomycin-resistant control studies, 1972
Effects of control sprays on russetting of Bartlett pears
Use of spray target cards and leaf analysis to measure spray coverage
Nonmercury fungicides for control of seedling disease of cotton
Using organic wastes as nitrogen fertilizers
Response of Thompson Seedless grapes to 4-chlorophenoxyacetic acid and benzothiazol-2-oxyacetic acid