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University of Minnesota Extension

Fertilizing alfalfa in Minnesota


A well-managed fertilizer program is a key ingredient in the efficient and profitable production of this crop.

When alfalfa production is considered, major emphasis should be devoted to

  • The proper use of lime.
  • Application of appropriate rates of phosphate, potash, sulfur and boron.

pH and liming guidelines

Profitable alfalfa production starts with a consideration of soil pH and lime needs.


Phosphate and potash


Other nutrients


Authors: Daniel E. Kaiser, Extension nutrient management specialist, and Keith Piotrowski, director of the soil testing laboratory

Reviewed in 2023

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