Potassium - How Foliar Nutrition Balances K/Mg

Written on 05/13/2020

Are you getting the most out of your investment in potassium? 

 Even though the level of potassium in your fields maybe adequate, your crop uptake may be limited due to the imbalance of potassium (K) and magnesium (Mg).

Watch the below video (less than 3 minutes) to learn:

  • The critical threshold of K/Mg
  • Visual signs of K deficiency
  • The efficiency of a soil application versus a foliar application
  • How to complement your soil-applied fertility program with a foliar application


Potassium is a key component of every crop fertility plan since it:

  • Promotes stalk strength and standability and improves resistance to drought, disease and stress as it makes plant cells thicker.
  • Controls stomatal opening and closing, preventing transpiration losses.
  • Increases seed and grain quality by reducing the infected seeds.
  • Regulates water status and activation of many enzymes.
  • Involved in the formation and translocation of sugars, proteins, starch and plant growth hormones.


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Want to learn more about Potassium?

Watch this video from our Nutrient Knowledge series to take a deeper dive into the role of potassium in plant nutrition.



Maximize your soil-applied potassium by balancing your field's K/Mg ratio with a foliar K application. Please contact us if you have any questions with regards to how ReLeaf or NRG can fit into your crop nutrition plans this spring.

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