New Release: 2% Slow Release Selenium Prill

SupaSel2

Key Features

  • Supa Sel2 is a slow-release 2% selenium prill for use as a fertiliser additive on selenium deficient soils to raise herbage selenium levels for animal health. To be applied at 0.5kg/ha annually to deliver 10g elemental selenium per hectare per year.
    • Provides grazing livestock selenium supplementation for a full 12 months.
      • Double the selenium making Supa Sel2 far more cost effective than comparable 1% products.

      Southstar Fertilizers Ltd have partnered the development of a double strength slow release selenium prill. It is a fertiliser additive applied by topdressing and is usually applied mixed with other fertilisers or on its own.

      It raises pasture selenium levels which then raises liver and blood selenium levels in stock grazing the pasture. When applied Supa Sel2 releases selenium at a gradual rate elevating pasture selenium levels for 12 months.

      There are currently two types of selenium prills on the market in New Zealand, classed as either fast-release prills or slow-release prills.

      Fast-release prills (traditional sodium selenate based products) typically give an initial pasture peak in selenium levels. This peak can last 1 – 3 months and then return to pre application levels in 5-6 months. Stock brought onto the property after this time period may require additional selenium supplementation.

      Slow-release prills on the other hand once applied provide an initial boost to pasture selenium levels. The remaining selenium is then released at a gradual rate sustaining pasture selenium levels for 12 months. This type of selenium product has been the preferred product for the last 10 years.

       

        

      Graph: release characteristics of fertiliser selenium products

      Supa Sel2 responds quite differently to traditional sodium selenate

      prills

      . It has been developed with slow release characteristics but supplies double the selenium at a similar price to current slow release products. The other sodium selenate prills available release their selenium rapidly and do not cover a 12-month period, especially when new stock is introduced several months after application.

      Throughout the development of Supa Sel2 the main requirement was to achieve a true 12 month prill where animals could be introduced at any stage up to a year after application and still have adequate selenium intake. Farmer feedback indicated that the actual rates of selenium being applied per hectare at the recommended 0.5 kg/ha/yr or 1 kg/ha every two years was not sufficiently meeting modern intensive farming needs.

      Trials have proved Supa Sel2’s effectiveness. The trials show release patterns are comparable to other slow release selenium products and far superior to traditional sodium selenate based products (see graph above).

       

      Packaging:

      In 25kg bags.

      Precautions & Handling:

      WARNING: Material is dangerous if swallowed, inhaled, or absorbed

      through the skin.

      PRECAUTIONS

      • Store in original packaging, closed, in a dry place away from sunlight, moisture and foodstuffs and under lock & key.
        • When handling wear protective clothing such as gloves, hat and overalls (worn outside boots). Avoid direct contact with skin and eyes and avoid breathing dust. Wash thoroughly after handling. Wash protective clothing daily after work.
          • Do not eat, drink or smoke while using.
            • Destroy empty bags or dispose of safely.
              • Avoid contamination of any water supply with chemical or empty bag.

              Mixing Rates:

              • Same as current standard rate of Selcote Ultra. 0.5 kg/ha.
              • But no more than 0.5kg/ha of Supa Sel2.

              Recommended rates of application:

              Sheep/beef and deer:

              0.5kg/ha of Supa Sel2 annually to supply 10g/ha of elemental selenium.

              Dairy:

              0.5kg/ha of Supa Sel2 annually to supply 10g/ha of elemental selenium.

              • Standard mixing rates: calculate to apply 0.5kg/ha of Supa Sel2.
              • Example addition rates to mixes:

               

              Mix application rate

               

               

              Supa Sel2 kg/ha

               

               

              Kg/T Supa Sel2

               

               

              50

               

               

              kg/ha

               

              0.5

               

              10.0

               

               

              100

               

               

              kg/ha

               

              0.5

               

              5.0

               

               

              125

               

               

              kg/ha

               

              0.5

               

              4.0

               

               

              200

               

               

              kg/ha

               

              0.5

               

              2.5

               

               

              250

               

               

              kg/ha

               

              0.5

               

              2.0

               

               

              300

               

               

              kg/ha

               

              0.5

               

              1.7

               

               

              375

               

               

              kg/ha

               

              0.5

               

              1.3

               

               

              400

               

               

              kg/ha

               

              0.5

               

              1.3

               

               

               

              For further information contact Murray Zander on +64 21 825240, +64 92360444 or mjzander@ihug.co.nz