K in Plants & Soils

General Crops

• Back-to-Basics Soil Fertility Information - Online Resource
• Potassium Cycling, Testing, and Fertilizer Recommendations - Montana State University-Bozeman
• Soil Fertility Guide - Manitoba
• Crop Potassium Nutrition – Implications for Fertilizer Recommendations - University of Nebraska
• Nutrient Management Self Study Course - Montana State University-Bozeman
• Soil Fertility Test Interpretation - Rutgers Cooperative Extension
• Understanding the Soil Test Report - University of Minnesota
• Understanding Fertilizer Labels - Rutgers Cooperative Extension
• Crop Nutrition and Fertilizer Requirements - Government of Alberta
• Plant Nutrition - Government of Newfoundland & Labrador
• Potassium for Crop Production - University of Minnesota
• Crop Nutrition and Fertilizer Requirements - Alberta Agriculture, Food and Rural Development
• Potassium Fertilizer Application in Crop Production - Alberta Agriculture, Food and Rural Development