Nutrient Management Research Database
General Information
Research Title
Effects of Potassium on Plant Diseases
Link to File
Research Specifications
Crop:
Soil Type:
Country: United States
Year: 1998
Authors
Summary/Abstract from Original Source
Research Highlights
Design and Methods
This resource covers the relationship between potassium nutrient and plant disease.
Results
Plants that have adequate nutrient levels are more resistant to a variety of diseases. In particular, the balance between N and K is important. As N inputs increase, adjusting K fertilization is needed to match the increased K demand.
Adequate K is associated with plants' ability to maintain strong, healthy stalks.
Rates of the following diseases can be lowered by proper K fertilization:
- Stalk rot and lodging in corn
- Leaf-spot disease in bermudagrass
- Powdery mildew in cucumbers
Proper K fertilization can also increase yield and crop quality.
Other Considerations
The list of benefits to K fertilization contained in this article is not exhaustive.