Potassium Fertilization Requirements for Intensively Managed Modern Alfalfa

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Start Date: 2011

Principal Investigator: Craig Sheaffer

Organization: University of Minnesota, Department of Agronomy and Plant Genetics

Status: Complete

 Background Information:

Alfalfa is the most important perennial forage crop in Minnesota. There is a critical need for information about the potassium (K) fertilization for intensively managed modern alfalfa varieties. This project determined the effects of K fertilizer application on the forage yield and forage quality of alfalfa varieties with improved disease resistance and yield potential. Potassium’s role in long-term alfalfa stand persistence was explored, and K uptake of alfalfa was determined.

Key Findings:

©2017 Agricultural Fertilizer Research and Education Council of Minnesota