Phosul Dry Granular Phosphate with Liberation Matrix Technology
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Using Phosul is simple—you can substitute it pound-for-pound for conventional phosphate fertilizer.
Phosul’s homogeneous granule sets a new standard for phosphate mineralization. Because Liberation Matrix Technology™ delivers phosphorus far more efficiently, Phosul at 20% P₂O₅ (over 90% efficiency) can provide the same plant-available phosphorus as MAP at 52% P₂O₅ (typically under 30% efficiency).
Product Contains:
8% Available P2O5 (AOAC 993.31 MOD)
20 % Total P2O5
20% Calcium
4 % Sulfur (as elemental)
Plus Liberation Matrix Technology™
Other Information
Crush Test - 0.1 MPa (15 PSI) (Medium-Hard)
Specific Gravity - 1.5 (93 lbs per Cu Ft)
Salt Index - 7
Available in 120 SGN (1 - 2 mm) for Broadcast applications and 240 SGN (2 - 4 mm) for blending in-furrow/ drill applications.
Typical Application Rates
Cash Crops - Apply 55 - 75 lbs per acre in-furrow
Perennial Pasture - Broadcast up to 500 lbs per acre every few years depending on soil test levels.
Typical cost per use in-furrow is - $30 - $45 per acre.
Sold by the Metric Tonne in loose bulk 37-38 MT Loads.
Contact Us for Todays Bulk Pricing
1 Metric Tonne Mini-Bulk Sack Pricing as of Feb 14, 2025
Grande Prairie, AB - $1385 /MT
Westlock, AB - $1353 /MT
Lethbridge, AB - $1305 /MT
Rosetown, SK - $1345 /MT
Wawanesa, MB - $1375 /MT
**Pricing subject to change at any time.
Download the Science
Facts You Should Know
PhoSul has multiple benefits compared to other commercial phosphate fertilizers that all add up to favourable economics and less pollution to the earth.
Also contains Sulfur and Calcium.
Is NOT water soluble and breaks down through natural microbial action for up to 94% plant availability.
Does NOT leach or runoff fields into waterways.
Positive effects for multiple growing seasons.
Less applications saves time, fuel, and fertilizer.
Not a temporary fix, it mineralizes and makes soils healthy and alive for the long term.
Favorable results in field trials compared side by side to commercial Phosphate fertilizers.
1/5 the Carbon footprint of conventional Phosphate fertilizers (MAP/DAP).
Competitive with current commodity pricing of conventional (non-organic) Phosphate fertilizers.
The New Standard
For Phosphate Fertilizer
Winner of the 2024 EPA Green Chemistry Challenge
Grows With Nature® using Liberation Matrix Technology™
PhoSul utilizes an all-natural, patented process that blends phosphate rock, sulphur, and proprietary ingredients into a homogenous mineral granule, is not water-soluble, and does not runoff in surface water.
Phosul’s key innovation, compared to standard rock phosphate or blends of rock phosphate and sulfur, is the inclusion of proprietary calcium binding ingredients we call Liberation Matrix Technology™. These co-factors have a higher affinity for the calcium ions released from rock phosphate than the phosphate itself, preventing insoluble calcium phosphate from reforming. When soil microbes convert the elemental sulfur in Phosul to sulfuric acid, the rock phosphate is dissolved, and the co-factor ingredients step in to keep calcium from binding back to the liberated phosphate. This mechanism greatly increases the amount of plant-available phosphate. Furthermore, because these reactions depend on microbial activity that requires water at the same time plants do, the phosphate is delivered to the plant precisely when it’s needed.
Liberation Matrix Technology™ is Phosul’s proprietary, granule-integrated system that creates a calcium sink, helping free phosphate from rock phosphate and keep it available for plant uptake.
All Ingredients are Procert and OMRI-listed and when activated, start a microbial reaction that creates a "calcium sink" allowing the natural liberation of phosphate, making it almost all entirely plant-available.
PhoSul is environmentally friendly and mineralizes soils. It competes in both performance and economics with chemically produced phosphate fertilizers when applied to phosphorous-deficient soils and works even better in high phosphate high pH soils.
Validated in the Lab, Greenhouse and Field
PhoSul has been working with four of Montana State University research stations on a variety of field crop tests (wheat and alfalfa) over the last four years at several of the MSU Agricultural stations including those at:
• Moccasin, MT
• Corvallis, MT
• Fort Ellis / Bozeman, MT
• Sydney, MT
Additional commercial field testing has been conducted on Potatoes, Alfalfa, Canola, Winter Wheat, Spring Wheat, and various fruits, vegetables, and berries.
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