Polysulphate Premium

0-0-13.3-18.2 11.6%Ca, 3.3%Mg
Advanced Multi-Nutrient Fertility
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0-0-13.3-18.2 11% Ca, 3.3%Mg

What Makes Polysulphate Premium Different

Naturally Mined Mineral (Extracted from polyhalite deposits in the UK, Polysulphate Premium is simply crushed, screened, and bagged — no chemical processing), Organic Certified (Certified for use in organic agriculture, supporting sustainability and soil health initiatives), Balanced Multi-Nutrient Profile (Provides sulfur, potassium, magnesium, and calcium together in each granule — promoting nutrient efficiency and crop health), Low Salt Index (Gentle on emerging seedlings, perfect for in-furrow or banded placement without seedling stress), Controlled Sulfur Release (Releases sulfate steadily over 50–90 days, minimizing early loss and maximizing uptake during critical growth stages).

Today’s crops demand more than just nitrogen. To unlock full yield potential, you need balanced fertility — sulfur, potassium, magnesium, and calcium — delivered consistently, safely, and sustainably. That’s where Polysulphate Premium comes in. A naturally occurring mineral, organically certified, seed-safe, and trusted by top growers across Canada — Polysulphate Premium provides the essential nutrients your crops need, exactly when they need them, as part of your comprehensive fertility program.

Guaranteed Nutrient Analysis:

GUARANTEED ANALYSIS
Polysulphate Premium
0-0-13.3
Tap any nutrient to see what it does in the plant
13.3%
Soluble Potash (K₂O)
Manages water use and stress tolerance. Strengthens stalks, boosts disease resistance and fills grain.
18.2%
Sulfur (S)
Partners with nitrogen to build protein and enzymes. Key for oil, protein and nitrogen use efficiency.
11.6%
Calcium (Ca)
Builds strong cell walls and membranes. Supports rooting, structural strength and nutrient movement.
3.3%
Magnesium (Mg)
The central atom of chlorophyll. Activates enzymes and powers photosynthesis and sugar transport.
Sulfur form: 45.6% SO₃.
Taurus · The Fertility Company
↻ Did you know?
Why does Polysulphate Premium feed four nutrients at once?
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Polyhalite
Polysulphate Premium is a single natural polyhalite mineral, so potassium, sulfur, calcium and magnesium all steadily release from one rock.
Taurus · The Fertility Company

Key Features and Benefits

Season-long sulfur supply enhances nitrogen use efficiency and protein formation, Potassium supports stronger root systems, drought resilience, and improved stress tolerance, Magnesium fuels chlorophyll production and energy conversion, Calcium strengthens cell walls, root health, and crop storability, Reduces fertilizer salt stress risks compared to ammonium sulfate, Ideal for cereals, canola, pulses, potatoes, corn, and forage crops, Supports sustainable soil health and organic practices.

Canola Poly Prem Day
Canola Root Interacting with Canola, Day 8

Potato Performance

Polysulphate Premium has shown outstanding results in potato production: Improved Tuber Storability (Calcium and potassium support better skin set and reduced storage losses), Enhanced Fry Quality (Balanced potassium nutrition improves specific gravity and frying color), Stronger Root Systems (Sulfur, magnesium, and calcium work together to boost root development, leading to more uniform tuber sizing). Growers looking for higher yields, longer storage life, and superior fry characteristics choose Polysulphate Premium as the foundation of their potato fertility programs.

Trial-Proven Agronomic Performance

Multiple years of independent and third-party research have proven that Polysulphate Premium: Increase yields compared to traditional sulfate sources, Improve grain, tuber, and pod quality across a range of crops, Enhance early vigor, root mass, and nutrient uptake efficiency, Reduce sulfur and potassium deficiencies during critical growth stages. 

View ICL’s extensive Canadian trial database for Polysulphate Premium here:

Application Guidelines

Placement: Broadcast, banded, or in-furrow depending on equipment setup. Blending: Fully compatible with Urea, CG P2x, MAP,  Potash, and other granular fertilizers. Typical Rates: 75 to 150 lbs/acre depending on crop nutrient requirements and removal rates. Consult your agronomist for a customized nutrient strategy.

Suggested Next Product

Together with Polysulphate Premium, these three products create a complete, efficient, seed-safe fertility foundation from emergence to grain fill.

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Feed Your Crops What They Need, When They Need It. Grow Stronger, Store Better, and Harvest More.

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Polysulphate Premium
Advanced Multi-Nutrient Fertility