Protassium+ Premium Sulfate of Potash Increases Yield in Alfalfa Field Trials
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The Proof is in the Potash
2012 field trials in Eltopia, Washington investigated which of the two most commonly used potassium sources had the best impact on alfalfa. Protassium+® (Sulfate of Potash) was the clear winner.
The Eltopia, Washington plot trials investigated potassium source impact on both new and established stands of alfalfa. The four treatment variations consisted of:
- 200 lb. of K2SO4 (Protassium+)/acre
- 200 lb. of KCI (muriate of potash)/acre
- 200 lb. of KCI + sulfur (equal to the amount in Protassium+)/acre
- An untreated check
In both variations, Protassium+ delivered higher yields over MOP.
In new alfalfa stands, Protassium+ resulted in:
- A 600 lb./acre yield over MOP
- A 400 lb per acre yield advantage vs. MOP + Sulfur
- Better stand establishment and first cutting
In established alfalfa stands, Protassium+ demonstrated:
- More than a one ton/acre yield over MOP
In both trials, alfalfa plants treated with Protassium+ experienced significant increase in yield per acre. The results of the field trial clearly show that choosing Protassium+ as a potassium source contributes to greater yield, forage quality and revenue for growers.
Learn more about potassium’s role in alfalfa by watching our video on how the right K source makes a big difference.
