Doing More with Less at Lower Input Cost Has Become a Reality
Amserve Agri Nutrients supplies premium fertilizer granules, custom nutrient solutions and granulation processing services to fertilizer blenders, agricultural agents and commercial farmers across South Africa.

Division Overview

Our Products

Agri Cal Granules (Calcitic Calcium Carbonate)
Amserve Agri Cal granules are produced from super ultrafine reactive calcium carbonate powder and are designed for fast soil reactivity and efficient alkalinity correction in high-productivity cropping systems.
Key Benefits
- Early pH optimisation in the planned crop root zone
- Critical calcium supply for strong, healthy root development
- Optimised NPK nutrient use efficiency through improved soil chemistry
- Early and cost-effective sub-soil acidity neutralisation to extend root access to
moisture and nutrients during dry stress periods
Specification
- 2mm to 4mm coated granules
- Designed for rapid degranulation and early reactivity in moist soils
- Product Code: B5548

Agri Cal Mag Granules (Dolomitic Calcium Magnesium)
Agri Cal Mag granules combine the soil conditioning power of calcium with the essential plant nutrition benefits of magnesium, delivered in a convenient granule form that integrates seamlessly into standard NPK blending operations.
Key Benefits
- Dual calcium and magnesium supply in a single granule application
- Improved soil structure and cation exchange capacity
- Easy to blend into NPK formulations without handling powders
Specification
- Product Code: B5549


Agri Cal Sul Granules (Calcium Sulphate)
Agri Cal Sul granules provide a readily available source of both calcium and sulphur, two nutrients critical for protein synthesis, enzyme activity and soil structural improvement.
These granules are particularly effective in sodic or compact soils where gypsum is agronomically indicated.
Key Benefits
- Combined calcium and sulphur nutrition in one granule
- Improves sodic and compact soil conditions
- Sulphur support for protein synthesis and crop quality
Specification
- Product Code: B5547

Full Biology Regenerative NPK Granules
Our regenerative NPK granule range represents the next generation of plant nutrition, combining traditional macronutrient supply with biological soil health components. These granules are designed for growers and blenders who are committed to long-term soil regeneration and reduced synthetic fertilizer dependency.
Key Benefits
- Integrated macro and biological nutrition in one granule
- Supports the transition to regenerative and sustainable farming practices
- Suitable for use in certified and biological crop production programmes


Trace Elements and Micronutrient Granules
Micronutrient deficiencies are among the most common and costly constraints in South African crop production. Amserve Agri Nutrients offers a range of trace element granules that are specifically engineered for easy integration into standard NPK bulk blending operations.
Key Benefits
• Granule particle size matched for uniform distribution in NPK blends
• Eliminates segregation risk associated with powder micronutrient inputs
• Available in a range of individual and combination trace element formulations
• Suitable for fertilizer blenders, co-ops and large farm operators

Agri Kesza 16
Unlock the full potential of your soil with Agri Kesza 16. This premium, dust-free granule delivers highly available Magnesium, Calcium, Sulphur and Silica to promote stronger roots, improved nutrient uptake and healthier, higher-performing crops. Fast-acting and easy to apply, Agri Kesza 16 helps maximise yield potential while supporting long-term soil productivity.
Key Benefits
- Supports Strong Root Development
Promotes healthier, more vigorous root systems for improved crop establishment and resilience. - Improves Nutrient Uptake Efficiency
Supplies highly available Magnesium, Calcium, Sulphur and Silica to help crops utilize nutrients more effectively. - Enhances Soil Health & Productivity
Improves soil condition and supports long-term fertility for sustainable crop production. - Fast-Acting & Highly Reactive
Micronized nutrients disperse quickly in the root zone for rapid plant availability. - Easy-to-Apply Dust-Free Granules
Uniform, durable granules ensure accurate application and seamless inclusion in fertilizer blends.
- Supports Strong Root Development
General Key to Action
Stronger roots. Healthier crops. Better returns. Speak to our specialists today about incorporating our products into your fertility program.

downloadable resource
Calcium & Alkalinity ManagementThe Nutrient RevolutionOur Services
- MillingWe mill raw materials to fine powder specifications for use in downstream blending and granulation processes.
- Powder BlendingCustom powder blending is available for clients requiring specific nutrient formulations prior to granulation or direct application.
- GranulationOur granulation facility converts fine powders into free-flowing granules of specified size, enabling easy handling, blending and mechanised application.
- DryingIndustrial drying capacity is available for grain, barley and other agricultural products as well as processed nutrient materials.
- Custom Granule FormulationWe work directly with fertilizer companies, co-ops and agronomic consultants to develop custom granule formulations that meet specific soil health objectives and crop nutrition requirements.
Who We Serve
Amserve Agri Nutrients serves a broad range of clients across the South African agricultural industry:
• Fertilizer blending operations requiring quality granule inputs
• Agricultural agents and distributors
• Commercial and large-scale farmers
• Agri co-operatives
• Agronomic consultants specifying custom nutrition programmes

Cost effective & active Nutrient support to Regenerative Agri:
- Summary focus:Our groundbreaking Bio, Regenerative and Organic Granular options offer Producers cost effective solutions to effectively reduce or eliminate their soils addictive dependence on traditional Chemical Fertilizer inputs, to remain productive. With 70 % of our atmosphere consisting of Nitrogen, our soil N provision should never be a critical shortfall. However, even healthy soils will always remain reliant on in time replenishment of the critical Minerals and Micronutrients removed off the land with each harvest. This change to focus on regenerative agric becomes progressively easier and more profitable as we can build up healthier soil biomes, with every crop. Not only reducing the traditional wastage of essential but expensive nutrients, importantly also reducing soil acidity and excessive liming costs after each crop.
- For your Crop’s N nutrient provisions:Our Master Crop Range can include together with the essential catalytic and plant available Micronutrients required early and throughout by each new productive crop life cycle. This safe and easy to include granules can also be used to include the cost efficient dispersion of adequate inclusions of BioN per ha (EL- I TECH BioN harnessing the energy production capability of free living photosynthetic organisms for Nitrogen fixation , independently from the plant) to bio fix the equivalent of 80kg of N per ha with every application, over an 8 week period.
BioN can also be cost effectively included in our Bio PhosCal 16%, 15% and 14%P granules
Where additional N may be required, our groundbreaking Urea UreaNmax coatings can be pre applied to ensure a Soil positive and stable Nitrogen availability to the crop at hand. Currently enabling the reduction of standard Urea provisions by more than 10 to 15% (alternatively enabling the provision of dependable and stabilized soil N by 10% to 15%) - For your Crops P and K nutrient provisions:Our ultra fine milled Rock Phosphate Granules can be used Un-reacted or Bio activated. Agri PhosCal16P offers 16%P long to medium term P together with 33 to 36% Ca (Ideal for early soil rectifications with KCl or for ensuring a longer- term soil P for Sugar Cane, forestry or orchid plantings).
For immediate and ongoing P and K availability, our Bio Phoscal16P, 15P and 14P together with sParK Tech, Phosphorous and Potassium solubilizing, increasing available P in the granule and P and K present in the soil by up to 500%.
SSP & PhosCal ratios can also be pre blended to achieve desired P, Ca and S values.
Bio Advantage, PhosCal16P or our Master Crop Granules also offer safe and efficient dispersant carriers for our Broad Spectrum Microorganism inclusions, promoting Plant Growth:
Bio Advantage, PhosCal16P or our Master Crop Granules also offer safe and efficient dispersant carriers for our Broad Spectrum Microorganism inclusions, promoting Plant Growth:
In addition to Nitrogen fixation and P and K solubilising, this consortium of various microorganisms is also responsible for both Biomass and critical Root structure enhancement. These Plant Growth Promoting Bacteria (PGPB) stimulate growth and Pathogen suppression within the soil biome, supporting a top Crop. - Other supporting Agri and Bio Granule options to ensure efficient planting band enhancements and profitability would include:Agri Cal (Ca)
Agri Cal-Sul, CalSul20, 30,40, 50 and 70 (Variable Ca, S)
Agri Cal-Mag (Ca, Mg)
Agri Cal-Si-Mag (Ca, SiO2, Mg)
Agri Cal-MagSul20,30, 50 and 70 (Variable Ca, Mg, S)
Agri Mag-Sil (Mg, SiO2) and Agri Kezsa 16 (Mg, Ca, S)
Master Maize, Potato, Soya, Sunflower, Wheat, Mac (specific Crop supporting Micros, Ca, S, Mg, organics and special carbons)
MultiSpoor HVC (Ca, S, Mg, Organics, Carbons and Micronutrients)
Doing more with less, just became real: Enabling exponential Growth and Profitability in the Global Agric Sector.
With our Revolutionary new cost effective, high productivity and Planet friendly Nutrient solutions, now available to the Global Agric Sector.
These game-changing solutions are equally available to Organic, Regenerative and Conventional Producers. From High rainfall and cool winter regions to Irrigation producers, Dryland and Hot Desert Sand conversion operations, offering many additional benefits to Producers.
Since the early 1900s, the Haber-Bosch process became the dominant method for producing synthetic fertilizers, converting atmospheric Nitrogen into Ammonia, one of the most energy intensive processes, also one of the most significant producers of greenhouse gases.
Critical Global Nutrient Nitrogen provision for feeding our expected 50% Global Population growth by 2050 would require an expansion of Nitrogen Fertilizer Production from the current 120 million tons per annum to 180mtpa in the next 25 years!
Urea at 46% N is still by far the leading N provision fertilizer manufactured globally and remains the Global cost Benchmark, despite its inherent volatilization and wash-through losses after application (also resulting in ground water and river pollution issues). Traditionally this benchmark price would have looked like US$370 to US$400/ton FOB, however with the current Middle East supply pressures these prices have rocketed and currently lie between US$830 and USD850/ton FOB. Urea Volatilization losses of up to 40% can be limited with the addition of a $12 to $18/t Urease inhibiting coatings.
In simple terms, adding an average of $50 freight cost we can easily extrapolate the typical Global Urea cost range per kg as 100% N on a CFR Basis:
2025 | +$15/t Urease | April 2026 | +$15/t Urease | |
Average FOB (US$/t): | 385 | 400 | 840 | 855 |
Freight provision (US$/t): | 50 | 50 | 50 | 50 |
Total CFR (US$): | 435 | 450 | 890 | 905 |
@46% N, $ Value per kg N: | $0.95 | $0,98 | $1.94 | $1.97 |
RSA indications, R/$16.5: | R15.60 | R16.14 | R31.92 | R32.46 |
To fully understand how critical the cost of N is to producers, is to understand that every 1mt of corn grain targeted to be produced will typically require a 25kg N provision alone to be available to the crop, in addition to all the P, K and other Nutrients required by the crop at hand. Normally P&K requirements together would total less than the total N requirement, which is almost true for the Global NPK demand and supply splits.
Currently this N alone represents an input cost horror for Agric Producers of Foods and other Agric commodities Globally. In addition, very good harvests of the previous 2025 seasons for some Countries, has created an additional dilemma of new, reduced commodity prices and below cost returns for many producers going into their new season, most of whom also have very high fixed costs invested, requiring recoveries every year.
In addition, after using Urea, MAP, Ammonium Sulphate or even CAN, a critical additional future Liming activity and expense of 1600kg to 400kg per ton of Fert used, to negate the developing soil acidity after using these synthetic fertilizer productions!
After the surge of synthetic fertilizer production after the Second World War, for the last eighty (80) years Global Synthetic production capacities have substantially increased in energy rich production regions, but nothing significant has been developed to reduce costs other than attempts to optimize and even regulate Nutrient release and usage.
The Nutrient Revolution – in 2025 the quiet proving of some radical new Early Life-Initiation Biological Technologies incorporated in various liquid applications for producing mineralized N in soils,
totally independent of the Plant, while also solubilizing of any locked up soil P and K ….and at the same time stimulating and supporting the plant growth, became a real and proven new Biological soil support Nutrient provision path.
Our NPK nutrients are now available to support Producers without any chemical processing!
With full El-I Tech Patents already secured in 30 countries with another 65 in process, Amserve Agri Nutrients are now able to offer these Revolutionary new Nutrient options with application simplicity, Safety and Biology support within our Granulation processes at high volume, cost-effective rollouts.
Importantly, the stable Mineralized N produced in the soil (up to 0,5m deep), independent of any plant, can be broad-spread, or applied directly in the Planting band and used as a top-dressing to produce more than 65kgN per Ha every eights weeks. Also in our Bento Range to convert desert sands to prime Agric soils.
With the P and or the K, Ca, Mg, S and support components also forming both the support carrier and dispersant for our Special Biology inclusions, potential NPK nutrient equivalent combinations of 98% NPK and more per Bio Granule ton are now possible. An extraordinary advantage, further enhancing our cost effective, Haz free, Local and Global logistics.
With all these amazing new productivity advantages, adoption could be expected to be slow if we were not also able to assist the Global Agric sector with immediate and substantial input cost reductions.
As a simple cost comparison, we can again use our typical BioN production values on just a few Bio Granule examples, against the earlier 2025/2026 Urea N /kg 100% benchmark costs:
Granule type: | BioCaN28%+ S, Ca. | Super BioN46%+S, Ca | BioN65PhosCal14.5P+ |
Ex JHB (R/t / $/t): | R6060/$367 | R7390/$448 | R11260/$682 |
FOB DBN (R/t /$/t): | R6890/$418 | R8285/$502 | R12350/$749 |
Less Ca@R10/kg: | R2000/$121 | R2000/$121 | R3000/$182 |
Less S@R12/Kg: | R1800/$109 | R1800/$109 | - |
Less P@R45/kg: | - | - | R6525/$395 |
Net FOB N value: | R3090/$188 | R4485/$272 | R2825/$172 |
N/kg as 100%: | R11.03/$0.67 | R9.75/$0.59 | R4.35/$0.27 |
Urea equivalent/t: | R5074/$308 | R4485/$271 | R2001/$124 |
In summary: As at our April 2026, 100%N production cost of only $0.27/kg, as an FOB Retail equivalent, other than industrial “bi-product ammonia” that must be disposed of, it does not matter much about what the future Coal, Oil or Gas input cost can reduce to, it would be very unlikely that future N productions would follow the same 80 years of costly Haber-Bosch type production expansions.
Plus, unlike Urea our BioN has no volatilization loss or soil acid neutralization cost.
With no expensive HAZ designation, nor any significant N shipping volumes and costs as our N Provision Biology hitches a ride with our other base value Nutrient volumes, that carry the Local and Global Distribution and Logistic costs. These base Nutrient volumes include P and or K and integrated Ca, Mg, S, Trace Micronutrients and Bio support, in other Agri Nutrient combination Bio Granules
Assisting with our proven Granulation and Blend Plant Designs (or conversions) and supply, together with our proven Production Processes and Bio Granule Formulations, we are targeting an early 60 million tons per annum of super competitive N value supply replacement.
This Global challenge will require early value adding, Distribution and Manufacturing Partners to assist with this huge supply demand roll out with base P and or K Nutrient granules.
Thank you for your consideration to join us on this very exciting journey. If you would like to be involved in this rollout Globally or only in your local region, we would value hearing from you and appreciate a summary of your experience and or regional base Nutrient Milling or Production capabilities.
Regards,
Andrew Wilmot
wilmot@amserve.co.za
