At Sulvaris, we develop proprietary technologies that transform industrial co-products into agronomically and environmentally friendly fertilizer products.

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Research & Development

Proven Agronomic Benefits

We strive to drive new innovation and technologies that create value on the farm and for our partners through sustainable solutions. With proven science and trial data we’ve demonstrated year after year that products using Sulvaris technologies deliver improved agronomic benefits compared to other alternatives.

These agronomic benefits include: improved nutrient delivery, availability and uptake throughout the growing season that is better aligned with crop needs, reduced application costs due to higher nutrient density, greater flexibility in application placement and timing, higher yield response and reduced environmental impact.

Alfalfa

Corn

Cotton

Soybean

Sugarcane

Wheat

All research was conducted by independent 3rd party organizations including universities and contract research organizations across the United States and Canada.

Alfalfa

Alfalfa

MAP+MST

Alfalfa dry yield (season total) and tissue sulfur concentrations with each cut from 4 site years. MAP+MST increased yield by 0.24 tons/ac over MAP.

Corn

Corn

MAP+MST

Average of all testing at 55 site-years (2018-2020). MAP+MST increased yield by 15 bu/ac over MAP.

Corn

MAP+MST - Fall vs Spring Application

Average grain yield from 12 site-years comparing fall to spring fertilizer application, demonstrating 17-18 bu/ac yield increase. MAP+MST is suitable in fall or spring applications.

Corn

Liquid MST

Average corn grain yield over 65 site-years, and tissue sulfur concentrations at critical vegetative (V) and reproductive (R) growth stages. Liquid MST increased yield by 11 bu/ac over GSP control receiving no sulfur.

Corn

Liquid MST - At Plant vs Side-Dress Application

Average grain yield from 7 site-years with Liquid MST applied at planting or at side-dress. Liquid MST demonstrates flexibility in application timing, with a yield increase between 7 – 8% above the control, and season long sulfur availability. Tissue samples taken at vegetative (V) and reproductive (R) growth stages.

Corn

Liquid MST - Fall vs Spring Application

Average grain yield from 7 site-years with Liquid MST applied at planting or at side-Average grain yield and tissue sulfur concentrations at vegetative and reproductive growth stages from 12 site-years of fall vs spring applied trials.
Liquid MST increased yield by 14-16 bu/ac whether applied in the fall or spring.

Corn

AS+MST

Average grain yield from 24 site-years in 2019-2020, and tissue sulfur concentrations at vegetative (V) and reproductive (R) growth stages.
AS+MST increased yield by 16 bu/ac, and demonstrated increased tissue sulfur concentrations compared to a GSP control without sulfur.

Corn

AS+MST - Highly S-Responsive Locations

AS+MST increased yield by 16 bu/ac, and demonstrated increased tissue sulfur concentrations compared to a GSP control without sulfur.
AS+MST increased grain yield by 39 bu/ac, and grain moisture at harvest was 1.3% lower that the GSP without sulfur.

Corn

MOP+MST

Average grain yield from 53 site-years from 2017-2020, and tissue sulfur concentrations at vegetative (V) and reproductive (R) growth stages.
MOP+MST increased yield by 13 bu/ac compared to MOP alone.

Corn

MOP+MST - Fall vs Spring Application

Average grain yield from 12 site-years from 2017-2020 (L), and tissue sulfur concentrations at vegetative and reproductive growth stages (right).
MOP+MST increased corn grain yield by 16-20 bu/ac when applied either in the fall or spring, compared to MOP, demonstrating flexibility in application timing.

Cotton

Cotton

MAP+MST

Average lint yield from 12 site-years (2018-2020). MAP+MST increased yield by 125 lb/ac over MAP.

Cotton

AS+MST

Average cotton lint yield from 10 site-years in 2019 and 2020.
Lint yield was increased by 112 lbs/ac with AS+MST over the GSP without sulfur

Cotton

Liquid MST

Average cotton lint yield from 15 site-years (2017-2020).
Liquid MST increased yield by 183 lbs/ac (16%) over the control.
Liquid MST can be applied at plant compared to thiosulfate which is often applied at side-dress to reduce leaching potential.

Cotton

MOP+MST

Average cotton lint yield from 16 site-years from 2017-2020.
MOP+MST increased lint yield by 150 lb/ac compared to MOP

Soybean

Soybean

MAP+MST - Highly S-Reponsive Locations

Average soybean yield from 4 site-years at highly sulfur responsive locations (2018-2020). MAP+MST increased yield by 4.6 bu/ac over MAP. Tissue sulfur concentrations indicate sulfur is available at critical vegetative and reproductive growth stages.

Sugarcane

Sugarcane

MAP+MST - Highly S-Reponsive Locations

Average sugar yield from 12 site-years from 2017-2020.
MOP+MST increased sugar yield by 659 lbs/ac compared to MOP, and had higher tissue sulfur concentration throughout the growing season.

Wheat

Wheat​

MAP+MST

Average winter wheat yield from 3 site-years (2018-2020). MAP+MST increased yield by 11% over MAP.

All research was conducted by independent 3rd party organizations including universities and contract research organizations across the United States and Canada.

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AS MST®

A Fertilizer containing micronized elemental Sulphur and Ammonium Sulphate

  • Product available with up to 15% MST® Sulphur
    • AS MST® (17-0-0-36S)
  • AS MST® has improved handling characteristics with strong agronomic performance.
    • This is a high analysis sulphur product, meaning a lower volume of product is required to achieve sulphur requirements in fertilizer blends.
  • Reducing the ammonium sulphate component in blends has the added benefit of reduced caking potential as MST® absorbs less water from the atmosphere.
  • Owing to the elemental sulphur component, AS MST® has a lower salt index per unit of sulphur than ammonium sulphate, which decreases the likelihood of damaging small, sensitive seeds like canola.
  • The combination of immediately available- and slow release-sulphur is ideal in cooler soils. The sulphate component of AS MST® offers immediate sulphur availability in the spring, and the MST® component will transform to sulphate as soils warm through the summer months.
  • In locations of high precipitation, the MST® component also offers added insurance as it will not leach from soils in high rainfall events until it is transformed to sulphate by soil microorganisms.

A brand-new Ammonium Sulphate fertilizer containing micronized sulphur

CCT-AP

Carbon Ammonium Phosphate

A revolutionary carbon-based, ammonium phosphate product

  • Sulvaris seeks to improve N and P use efficiency with a structural carbon enhanced efficiency carrier by pursuing the development of a new proprietary product, CCT-AP
  • Global use efficiency of P fertilizers is currently only ~10-15% in the year of application, far lower than that of N and K(1)
  • P deficiencies can be found in nearly 67% (14.1B acres) of global land designated for crop production(2)
  • CCT-AP product development targets:
    • a source of enhanced efficiency nitrogen and phosphate,
    • an agronomic source of soil organic carbon,
    • a low-CAPEX, accretive investment as a bolt-on unit for existing commercial-scale phosphoric acid/MAP/DAP production facilities

CCT-AS

Carbon Ammonium Sulphate

A revolutionary carbon-based, ammonium sulphate product

  • CCT-AS is a carbon-based granular fertilizer developed by Sulvaris
    • Carbon content 5 – 15%
  • Potential source of enhanced efficiency nitrogen; shown to increase yields
  • Delivers nutrients in carbon matrix form – contributing to Soil Organic Carbon
  • Feedstock includes biomass, ammonia, and sulphuric acid
  • In addition to being a unique, high-value source of crop nutrients, CCT-AS provides an outlet for wood waste or other carbon-based waste streams
  • CCT transforms inexpensive waste feedstock into high analysis fertilizer
    • Potential reduction of soil N2O emissions
    • Potential reduction of soil CH4 emissions
    • Generates CO2 credits

19% N, 21% S, 5% C (19-0-0-21-5C)

SGN: 290-320 (2.9-3.2mm)

Uniformity index > 60

Crushing strength > 4.5 kg (10lb)

HIGH RTA and LOW dust

Flexible process allows for alteration of nutrient analysis and carbon content, as well as the addition of micronutrients

POTASH MST®

A Broad Acre Potash and Sulphur Fertilizer

  • 0-0-49-15S product available with up to 15% sulphur
  • Being a mixture of Potash and elemental sulphur (MST®), Potash MST® offers a multitude of benefits for growers, from improved handling characteristics to strong agronomic performance.
  • With an analysis of 0-0-49-15s, Potash MST® meets the majority of sulphur application requirements without the need for additional sulphur.
  • Once applied to the soil, Potash MST® has excellent dispersal of the MST® component.
  • Differentiate your potash portfolio with a value-added product.

Potash MST® ​granules produced at IFDC

A brand-new potash fertilizer containing micronized sulphur

Traditional Elemental Sulphur Products

 (75-2000 micron size avg 960)

Specialty Products with Elemental Sulphur

(50-200 micron size avg 150)

Sulvaris MST® Particle Size

(1-12 micron size avg 7)

Phosphate MST®

A broad acre phosphate fertilizer containing micronized elemental Sulphur

  • MAP MST® nutrient formulation is 9-43-0-16S (15% MST®)
  • In research trials in North America Phosphate MST® has equal to or greater yield responses than ammonium sulphate.
  • MST® provides three essential plant nutrients (NPS) together within each granule of phosphate MST® for uniform distribution across the field.
  • Phosphate MST® has enhanced blending characteristics over AS and exhibits less caking due to the hydrophobic nature of elemental sulphur.
  • Non-combustible product (confirmed by 3rd party testing lab).
  • Granule hardness, storage and handling properties identical to MAP.

Phos MST® has all three nutrients evenly dispersed through every granule

Traditional Elemental Sulphur Products

 (75-2000 micron size avg 960)

Specialty Products with Elemental Sulphur

(50-200 micron size avg 150)

Sulvaris MST® Particle Size

(1-12 micron size avg 7)

UREA MST®

A broad acre fertilizer containing micronized elemental Sulphur and Urea

  • Product available with up to 15% Sulphur 
  • Urea MST® (39-0-0-15S)
  • The sulphur component in Urea MST®  can be adjusted from 5 to 15% depending on marketing requirements.
  • The MST® Unit is a “bolt-on” side skid that easily integrates into existing drum granulation Urea production facilities. Integration into Prilling process is under development.
  • Virtually non-intrusive process, requires no modifications to existing plant and equipment. 
  • Virtually no production loss due to downtime during construction phase.
  • Sulphur is hydrophobic and repels moisture. MST® in the Urea granule improves storage properties, blending and application uniformity. 

A brand-new Urea fertilizer containing micronized sulphur

Traditional Elemental Sulphur Products

 (75-2000 micron size avg 960)

Specialty Products with Elemental Sulphur

(50-200 micron size avg 150)

Sulvaris MST® Particle Size

(1-12 micron size avg 7)

Liquid MST®

A broad acre liquid fertilizer containing micronized elemental Sulphur

  • Product available with up to 5% Nitrogen in the form of UAN
  • Liquid MST® (0-0-0-50S)
  • Liquid MST® (5-0-0-38S)
  • Product including UAN has a lower freeze point of -11 degC
  • Freeze / thaw cycles have no change in the product quality
  • Suitable for use with common liquid fertilizer equipment
  • A comprehensive product handling guide has been developed for Liquid MST® including the following:
  • Practical and effective equipment cleaning protocol
  • Recommended storage, handling and application best practices

Advantages

On average, Liquid MST® has provided greater yield responses than ammonium thiosulfate across all site-years studied.

The sulphur in MST® is immobile in the soil until it is oxidized to sulphate.  Liquid MST® has less leaching than ATS and can be readily integrated into fall and early spring applications.

Liquid MST® does not have a high salt or nitrogen component that can damage germinating seeds, or foliage.

This is a high analysis sulphur product, meaning a lower volume of product is required to achieve sulphur requirements.

Liquid MST® is suitable for side dress applications.

Liquid MST® has a lower carbon footprint than tradition sulphur products such as ATS or AS.

Liquid MST® allows all of the crop’s sulphur requirements to be provided from one source, creating an opportunity to choose an environmentally responsible N source.