Protassium+ Potassium Sulfate
Top Pick
Protassium+

Protassium+ Potassium Sulfate

4.6

Best organic potassium supplement for gardeners creating custom liquid fertilizers.

This OMRI-certified potassium sulfate is the gold standard for organic growers who prioritize rapid solubility. Its fine-screened texture dissolves effortlessly into liquid feeds, though you will need to handle the powder carefully to avoid dust compared to traditional granular alternatives.

$15.45

In stock

at

Custom Hydro

Who it's for

  • Gardeners growing salt-sensitive fruits and delicate ornamentals
  • Organic farmers requiring OMRI-certified inputs for their crops
  • Growers seeking dual-action potassium and sulfur nutrient support

Who should skip it

  • Budget-conscious farmers managing large-scale agricultural operations
  • Gardeners looking for the highest concentration of potassium per application
  • Users managing soil already prone to high acidity levels

Performance breakdown

Dissolution Speed

Fine screening ensures rapid breakdown for seamless liquid application.

Excellent

Nutrient Density

High concentration of potash and sulfur maximizes plant health efficiency.

Excellent

Organic Compliance

OMRI certification guarantees strict adherence to organic farming standards.

Excellent

Application Versatility

Ideal for creating custom liquid suspensions or specialized fertilizer solutions.

Excellent

Environmental Impact

Solar evaporation process minimizes waste and avoids harmful synthetic additives.

Excellent

Chlorine Sensitivity

Low chloride content protects sensitive crops from salt-related stress.

Excellent

Key Specs

Guaranteed Analysis

0% Nitrogen (N), 0% Phosphate (P2O5), 50% Soluble Potash (K2O)

Secondary Nutrient

17% Sulfur (S)

Maximum Chlorine (Cl) Content

0.8%

Package Weight

4 LB

Derived From

Potassium Sulfate

Particle Size

Fine screened for rapid dissolution

Certification

OMRI Certified as organic

NPK Ratio

0-0-50

Solubility

Rapid dissolution in making liquid fertilizer solutions and suspensions

Application Method

Drench

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Protassium+ Potassium Sulfate

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Custom Hydro
Custom Hydro
In stock
$15.45
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