{stash:pageContent} {/stash:pageContent} Potassium Fertilizer for Healthier Crops | Protassium+
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About Protassium+

SOP from Compass Minerals is now Protassium+

Introducing Protassium+, the premium sulfate of potash (0-0-50-17S) that delivers high potassium and sulfate sulfur with virtually no chloride and low salt index. Protassium+ is the K source high-performing growers, crop consultants and retailers have trusted for decades to improve plant health and optimize yields.

A more efficient source of nutrients helps you bring more to the table.

Quality and consistency

A Better Grade of Potassium

Protassium+ provides 50% K2O and 17% sulfate sulfur and comes in a variety of particle sizes to create better, more uniform custom blends.

Select a crop

Why Crops Need Protassium+

Alfalfa
Almonds
Avocado
Berries
Citrus
Grapes
Lettuce
Melons
Onions
Ornamentals
Peppers
Potatoes
Fruits & Veggies
Sweet Potatoes
Tobacco
Tomatoes
Tree Nuts
Turf
Alfalfa
Almonds
Avocado
Berries
Citrus
Grapes
Lettuce
Melons
Onions
Ornamentals
Peppers
Potatoes
Fruits & Veggies
Sweet Potatoes
Tobacco
Tomatoes
Tree Nuts
Turf

(K)nowledge Center

Protassium+ Agronomic Assets

Find out more on why Protassium+ is the best potassium choice when it comes to optimizing plant health.

Calculators

Calculate Your K Uptake

A potassium deficiency steals plant quality and yield. Our expanding library of Uptake Calculators show how much potassium is removed from the soil and how much needs to be replaced to ensure the prosperity of your plants.