Nutrient Management Research Database
General Information
Research Title
Potassium Fixation and Its Significance for California Crop Production
Link to File
Research Specifications
Crop:
Soil Type:
Country: United States
Year: 2011
Authors
Stuart Pettygrove, Toby O’Geen, and Randal Southard
Summary/Abstract from Original Source
Research Highlights
Design and Methods
Results
- While potassium (K) is always present in soils, that amount that is plant available can vary.
- This paper outlines the mechanisms that result in K “fixation,” that results in K becoming unavailable to plants due to being trapped between soil clay particles.
- As a result of K “fixation,” crops can exhibit K deficiency even when K fertilizers are applied.