SULFUR FERTILIZERS

• NutraSul 90
• Agtiva 85
• Supreme
• 6-0-0-70 ▪ 9-0-0-60
  12-0-0-50 ▪ 11-0-0-53
• Pure Elemental Sulfur
• Micronutrient Sulfur Pastilles
• FAQs

NutraSul 90% Sulfur Fertilizer

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Product Description:

• Split-pea shaped pastille
• Two kinds of bentonite that are combined to total 10% of the product analysis: One clay is very high swelling and slow hydrating, and the other swells less and hydrates very quickly – a combination that results in superior degradability.
• Surfactants and crystal modifiers are added to enhance the product’s effectiveness.
• NutraSul 90 is registered as an approved material with Washington State Department of Agriculture Organic Food Program.

Recommendations:

• NutraSul 90 provides a natural slow release of Sulfate throughout the season.
• Application rate is based on agronomic recommendations from soil tests and should also consider crop removal rates of Sulfur.
• With Sulfur deficiencies in soil, soluble Sulfate must be applied to high Sulfur-requirement crops such as oil seeds (a blend of NutraSul 90 and Ammonium Sulfate is very effective).
• However, if NutraSul 90 is applied regularly as part of a balanced fertility program, Sulfur levels can be maintained without Sulfate.
  

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Agtiva 85% Sulfur Fertilizer

Information Sheets
View MSDS

Product Description:

• Split-pea shaped pastille
• Two kinds of bentonite make up 15% of the product analysis for better dispersion within the pastille. One clay is very high swelling and slow hydrating, and the other swells less and hydrates very quickly – a combination that results in superior degradability.
• Surfactants and crystal modifiers are added to enhance the product’s effectiveness.
• Agtiva 85 is registered as an approved material with Washington State Department of Agriculture Organic Food Program.
  

Guaranteed Analysis: Sulfur 85.0% from elemental sulfur Bentonite 15.0% total bentonite clay from 2 sources

Typical Properties: Color Tan Copper colored Pastilles Angle of Repose 29 degrees Particle Size Size guide #270, diameter 2.6 - 3.0 mm, height 1.4 - 1.5 mm Bulk Density 74 pounds per cubic foot or 1215 kg per cubic meter Breakage Characteristics Less than 0.25% is -42 mesh at truck loading. See research on safety & handling or impact tests. Packaging Shipped in bulk with trucks or rail cars. Mini-bulk totes of 2000 lbs (907 kg) or 2500 lbs (1134 kg). Plastic bags of 25 kg or 50 lbs each, palletized and wrapped.

Recommendations:

• Agtiva 85 provides a slow release of Sulfate throughout the season.
• Application rate is based on agronomic recommendations from soil tests and should also consider crop removal rates of Sulfur.
• With Sulfur deficiencies in soil, soluble Sulfate must be applied to high Sulfur-requirement crops such as oil seeds (a blend of Agtiva 85 and Ammonium Sulfate is very effective).
• However, if Agtiva 85 is applied regularly as part of a balanced fertility program, Sulfur levels can be maintained without Sulfate.
  

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Supreme Sulfur Fertilizer

Information Sheets
View MSDS

Product Description:

• Split-pea shaped pastille
• Two kinds of bentonite make up 15% of the product analysis for better dispersion within the pastille. One clay is very high swelling and slow hydrating, and the other swells less and hydrates very quickly – a combination that results in superior degradability.
• Surfactants and crystal modifiers are added to enhance the product’s effectiveness.
• Supreme is registered as an approved material with Washington State Department of Agriculture Organic Food Program.
  

Recommendations:

• Supreme provides a slow release of Sulfate throughout the season.
• Application rate is based on agronomic recommendations from soil tests and should also consider crop removal rates of Sulfur.
• With Sulfur deficiencies in soil, soluble Sulfate must be applied to high Sulfur-requirement crops such as oil seeds (a blend of Supreme and Ammonium Sulfate is very effective).
• However, if Supreme is applied regularly as part of a balanced fertility program, Sulfur levels can be maintained without Sulfate.

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Sulfur ▪ Ammonium Sulfate Blends

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Product Description:

• Provide the benefits of immediately available Sulfate and time released Elemental Sulfur.
  
• The Sulfate is provided from a quality prilled Ammonium Sulfate, and this makes up nearly one half of the total blend.
• This Sulfate is blended with our highly degradable elemental NutraSul 90 Sulfur fertilizer pastilles.
• This can be the dealer's best choice for a high analysis premium product that is cost effective and easy for the dealer or grower
  to handle.
  

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Pure Elemental Sulfur

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Product Description: Pastille

• Keg River Elemental Sulfur is a split-pea shaped pastille that provides excellent handling properties for industrial users.
• Manufactured with the same drop forming process Keg River pioneered in North America more than 15 years ago, this pure Sulfur surpasses strict standards for industries such as sugar refining, malting, dried fruit production, pulp & paper, mining and
  agricultural feeds.
• Our quality control measures ensure a very low dust content (< 0.5%).

Product Description: Spherical Prill

• Also known as Polish Air Prill, this product is very pure, with no residue resulting from combustion.
  

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Micronutrient Sulfur Pastilles

Product Description:

• Combined highly degradable Sulfur with premium micronutrients in a split-pea shaped pastille.
• Superior handling characteristics compared to typical micronutrient products.
• Allows for a more even distribution of nutrient.
• Contact customer service for more information.
  

Zinc 18% ▪ Sulfur 65%

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Product Description:

• Split-pea shaped pastille formed from a homogeneous viscous slurry of high quality Zinc Oxide (Agrazinc 80), Elemental Sulfur and Bentonite.
• Advantage: Lower analysis of the Micronutrient allows for many particles to be more evenly dispersed over a larger area, instead of having a high concentration in one granule.
  

Physical Properties:

Iron 5% ▪ Zinc 5% ▪ Sulfur 77%

View MSDS

Product Description:

• Split-pea shaped pastille formed from a homogeneous viscous slurry of high quality Zinc Oxide (Agrazinc 80), Black Iron Oxide (Magnetite), Elemental Sulfur and Bentonite.
• Advantage: Lower analysis of the Micronutrient allows for many particles to be more evenly dispersed over a larger area, instead of having a high concentration in one granule.

Physical Properties:

9-0-2 +8% Calcium Liquid Fertilizer

Product Description:

• Keg River’s 9-0-2 +8% Ca Liquid Fertilizer is produced by combining a high analysis Calcium Chloride brine with Nitrogen fertilizer.
• Advantage: This fertilizer is an excellent source of 100% soluble Calcium nutrient that is both economical, and easy to handle.

Physical Properties:

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FAQ's

The following are commonly asked questions about Degradable Elemental Sulfur Fertilizer:

Why use Degradable Sulfur?

• Degradable Sulfur provides very high analysis fertilizer that can be used to reduce fertilizer volume (fewer fills, lower transportation costs, less storage, less handling), and a substantially lower price per unit to reduce input costs.
• Provides Sulfur fertilizer without Nitrogen.
• There is no seed-row toxicity.
• Sulfur pastilles are designed and sized to blend very well with common fertilizers.

What are the differences between the 90 to 85 percent Sulfur products?

• From 90 to 85 percent, the pastilles have progressively more Bentonite Clay in the blend. More Bentonite improves degradability (related to speed of conversion to Sulfate), hardness of the pastille (reduced dust), and safety in handling.

Why is Bentonite Clay used to form Degradable Sulfur products?

• Because Elemental Sulfur is insoluble in water, a pure Sulfur pellet would not readily disintegrate in soil. Bentonite absorbs water and swells to break up the Sulfur granules and provide a high degree of surface area exposure of Sulfur to microbes in soil – microbes then oxidize the Elemental Sulfur into plant useable Sulfate.
• There are many types of Bentonite Clay with a range of different characteristics. After extensive research, Keg River selected two specific types of Bentonite for our Degradable Sulfur fertilizers that yield the best results: one that is very high-swelling, but hydrates slowly, and one that swells less, but hydrates very quickly. When exposed to water, this combination of Bentonite Clays provides excellent degradation to facilitate efficient conversion to Sulfate.
• Bentonite content in Sulfur pastilles also increases particle hardness. Higher pastille durability means less dust generation during handling.
• Bentonite content also decreases resistivity of bulk Sulfur, or the tendency of bulk Sulfur to retain electrostatic charge – thus decreasing fire hazard. Prills with less than 5% Bentonite could be hazardous, but the addition of 10% Bentonite exponentially improves the safety. 15% or more of Bentonite improves conductivity (or the ability of bulk Sulfur to discharge electrostatic build-up) so much that risk is likely negligible.
  

Can I use Degradable Sulfur instead of Ammonium Sulfate?

• Degradable Sulfur can displace some or replace all Ammonium Sulfate as part of a long-term, cost-saving and fertilizer volume reducing strategy.
• Because Degradable Sulfur is Elemental Sulfur, it provides a natural slow-release mechanism, where Sulfate available from this year’s application combines with Sulfate from last year’s application, in a multi-year program.
• A common strategy to introduce Degradable Sulfur involves a larger application in the first year, followed by lower applications in subsequent years gauged by current Sulfate content.
• Another strategy is to incorporate blends such as 11-0-0-53 to ensure Sulfate availability early in an Elemental Sulfur program.

Does Degradable Sulfur have very much dust?

• Dust content in Degradable Sulfur is a key criterion for quality. On load out at Keg River, we apply specially formulated dust control sprays with specially designed proprietary applicators to ensure that the product arrives in excellent condition.
• Research efforts over the last 15 years have focused on better Bentonite Clay combinations to produce harder pastilles that reduce dust generation with handling.
• Dust problems can be minimized by:
  
  • Handling Sulfur no more than necessary
  • Minimizing transfer points and drops at transfer points
    
  • Sulfur handling areas should have minimal ledges and surfaces where dust can accumulate.

Is Degradable Sulfur widely used?

• Estimated volume of Degradable Sulfur used in the USA is 100,000 Metric Tonnes.
  
  • Estimated percentage of fertilizer dealers in the USA that handle Degradable Sulfur: 90+%
• Estimated volume of Degradable Sulfur used in Canada is 11,500 Metric Tonnes.
  
  • Estimated percentage of fertilizer dealers in Canada that handle Degradable Sulfur: 25-30%
• Estimated increase in the volume of Degradable Sulfur use in North America since 1983: 450%
  
  • Estimated increase in volume of all fertilizers: 26%

How does nutrient loss to leaching compare between Degradable Sulfur and Ammonium Sulfate?

• Degradable Sulfur provides a natural slow release of nutrient that prevents nutrient loss with excessive moisture. Ammonium Sulfate is readily leachable.
  

What percentage conversion to Sulfate can be expected in the first year?

• The conversion rate of Degradable Sulfur to available Sulfate depends on several factors including:
  
  • Moisture – water facilitates pastille breakdown leading to conversion to Sulfate
  • Temperature – rate of conversion increases with increased soil temperature
  • Microbial activity – soil microbes are essential for conversion and most soils contain sufficient microbes. Microbial activity is enhanced with successive applications of Elemental Sulfur.
  • Soil pH affects conversion to the extent that it affects microbial activity.
  • Application Methods – Broadcast applications are slightly superior to banding for conversion to Sulfate, and autumn application also provides for faster conversion.
    

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