Potassium Sources for Alfalfa | Protassium+®


The Right Source

When choosing the right potassium source for your alfalfa, it pays to take a closer look at what you’re actually getting for your money. Some of the factors you’ll want to consider include potassium content, value-added nutrients, salt content, risks in over-application, application costs, yield performance and forage quality.

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A Rich K Source

The Advantage of Protassium+

Protassium+ is the richest source of low-chloride potassium, providing an equivalent content of 50 percent K2O, commonly referred to as potash.


Less Worry

Virtually Chloride Free

Because Protassium+ is low in chloride (less than one percent) compared to many other potassium fertilizers, it minimizes the harmful impact that soil salt buildup can have on your alfalfa. Excess chloride in the soil can reduce plants' uptake of vital nutrients like nitrogen, sulfur, phosphorus, boron and others, which often takes a heavy toll on yields and forage quality.

Some potassium sources such as muriate of potash (MOP) contain high levels of unneeded and potentially harmful chloride. In salt-sensitive crops, Protassium+ is clearly the preferable option.


Sulfate Sulfur

Value Added Nutrients

Protassium+ also consists of 17% sulfate sulfur -- an essential secondary nutrient that plays a key role in aiding protein synthesis, promoting enzyme activity, maintaining proper nitrogen to sulfur ratios and more. Because of its importance, sulfur is often called the fourth macronutrient. Applying Protassium+ can eliminate the need to make a separate sulfur purchase. 


Avoid the Burn

Low Salt Index

Protassium+ has the lowest salt index per unit of K2O of all major potassium sources, helping you to avoid many of the problems that excess salt poses to crop development and soil systems, including:

  • Poor germination
  • Water and nutrient imbalance
  • Seedling injury and "Tip Burn"
  • Stunted root and shoot growth
  • Reduced soil structure and decreased microbial activity

While heavy application of many other potassium sources may contribute to potentially dangerous soil salt build up, the low salt index of Protassium+ minimizes this risk. It also gives you added application flexibility and more peace of mind about the health of your crop.