Biological & Low-Salt Fertilizers for Peace Country Farms
Fertilizer supplies nutrients. Soil biology helps cycle them. Both matter when we’re trying to get more out of a fertility program. That’s why we carry Replenish Nutrients: granular phosphorus, potassium and sulphur fertilizers made with activated compost and microbial communities for farms across the Peace Country and northeast B.C.
Peace Soil Works distributes Canadian-made Replenish fertilizers for growers seeking alternative mineral fertility and soil-health programs.
Based in Beaverlodge, we serve the Peace Country and Northern Alberta while also arranging product supply and freight to other Canadian regions where available.
We look beyond the fertilizer analysis. Nutrient release, soluble salts, soil conditions and the biology working around the roots all matter. These products take a lower-salt, compost-based approach to mineral fertility. That doesn’t make every rate or placement suitable for every field.

What makes biological fertilizers different?
The biology is part of the fertilizer
The granule combines mineral nutrients with activated compost, which contributes organic matter and a diverse microbial community. Bacteria and fungi are involved in residue breakdown and nutrient cycling. We want farmers to understand the biological side of fertility, not just the nutrient percentages printed on the bag.
Nutrient release relies partly on the biological cycle
Not all nutrient sources behave the same way. Rock phosphate depends on soil chemistry and biological processes for release, while elemental sulphur must be converted to sulphate before the crop can use it. Soil temperature, moisture, oxygen and microbial activity all affect that timing. We account for those differences when deciding on a fertilizer program.
A low-salt formulation
Salt concentration matters, especially when fertilizer is placed close to seed and emerging roots. Lower-salt formulations are one way to manage that concern, but we still look at the individual product, not just the label. Super KS, for example, contains muriate of potash (KCl). Before recommending seed-row placement, we consider the crop, rate, row spacing, seedbed utilization and moisture. Low-salt is not the same as automatically seed-safe.
How the biological nutrient cycle works
- Start with minerals: finely processed phosphorus, potassium and sulphur sources provide the nutrients.
- Add compost and biology: organic material and microbial communities are brought into the same granule.
- Make nutrients available: bacteria, fungi and other soil processes help transform mineral nutrients into plant-available forms over time.
- Keep the cycle going: roots and crop residues provide carbon to soil organisms as nutrient cycling continues.
Our goal is to supply the nutrients a crop needs while paying attention to the soil processes that make those nutrients available. Biology matters, but it doesn’t replace a nutrient budget or the need for an adequate early-season supply.
Explore the Replenish Product Pages
Replenish Rebuilder
Calcium-rich rock phosphate, activated compost and low-salt fertility, with agronomy and field research.
Replenish HESO
Phosphorus, potassium and sulphur combined with activated compost. Read the crop-trial results.
Replenish Super KS
Potassium and sulphur for fields that need them, with biological diversity findings.
Three Replenish fertilizers
Rebuilder
0-17-0-12
Phosphate builder
Phosphorus and sulphur with activated compost. We look at Rebuilder when soil tests point to a phosphorus requirement and we want to support the nutrient cycle alongside that application.
HESO
0-9-20-20
P-K-S maintenance blend
Phosphorus, potassium and sulphur with compost-based biology. HESO is worth comparing when soil tests show a combined P, K and S requirement rather than treating each nutrient in isolation.
Super KS
0-0-30-35
Potassium and sulphur builder
Potassium, elemental sulphur and active compost. We evaluate Super KS where soil tests show a K or S shortfall, while allowing for the time elemental sulphur needs to become plant-available.
The biology has been tested
Microbial profiling by Biome Makers identified 1,017 microbial species in Rebuilder and 765 in HESO, including groups associated with decomposition and nutrient cycling. This gives us a picture of the microbial diversity in the products. DNA-based species counts aren’t the same as live microbial counts or a guaranteed yield response, so we still judge the program by what happens in the field.
Rebuilder microbial analysis (PDF) ยท HESO microbial analysis (PDF)
Where this fits in the Peace Country
Cold spring soils in the Peace Country can slow biological nutrient release, particularly the conversion of elemental sulphur to sulphate. That’s why we start with the soil test, crop demand, seeding setup and application timing. We’ll compare these products with the rest of your fertilizer program, but we won’t assume the biological component means you can automatically cut nitrogen or starter rates.
We also look at field-trial research on these fertilizer programs (PDF). The responses vary by crop and location. What matters to us is whether the complete program makes agronomic and economic sense on your acres.
Local fertilizer supply and guidance
We can compare Rebuilder, HESO and Super KS against your soil tests and existing fertilizer program, including nutrient rates and cost per acre. Peace Soil Works supplies farms across Northwest Alberta and northeast B.C. Call 780-380-1408 to discuss product availability or placement.
For humalite and humic soil amendments, visit our Humic Acid & Humalite page.
