Price from:
$1,145 .45 MT
Direct debit price
Excludes gst, and freight & handling charges


N 29.8
P 0.0
K 0.0
S 31.5
Mg 0.0
Ca 0.0
  • Fertmark guarantee
  • Rebateable
N-Protect S™

Product Description

A dust-free blend of N-Protect coated urea and Sulphur 90, an ideal Nitrogen and Sulphur boost for pasture production in autumn and spring.

N-Protect S provides the opportunity for urea and sulphur to be applied in conditions where losses of N through volatilisation can be reduced economically.

N-Protect contains 300ppm active ingredient (NBPT) as registered with Fertmark.

Why Use N-Protect S™

  • N-Protect will provide the opportunity for urea to be applied in conditions where losses of N through volatilisation can be reduced economically.
  • Dust free blend.
  • Studies show using the urease inhibitor nBPT can reduce volatilisation by up to 50%.
  • Sulphur 90 is a dust free concentrated sulphur fertiliser with good granule strength.
  • Sulphur 90 is safe and easy to handle, transport and store and can be used for both ground and aerial application to crops and pastures.


N-Protect mixed with Sulphur 90

Caution When Mixing

Although N-Protect S may be mixed with other products for immediate application, it is not compatible with the following: Superphosphate, Sulphur Super 30, Maxi sulphur super, Magnesium Oxide, Granular Ammonium Sulphate, Copper Sulphate and Cobalt Sulphate.

Flexi-N (magnesium coated Urea) can be used as a substitute when mixing with Superphosphate based products.

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0800 100 123


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Product Sizes available

  • Bulk

Delivery Options

  • Pickup


Important Information

  • Benefits

    N-Protect S helps reduce the volatilisation risk, which is greatest when the following conditions occur:

    • High rates of N are applied in a single application (50-100kgN/ha).
    • There is a lack of soil moisture, rain or irrigation within 8 hours of application.
    • There is bare soil or little or no plant cover.

    N-Protect S provides availability of sulphur to plants as the range of elemental sulphur particles are converted to sulphate sulphur allowing plant uptake.

  • Application rates and advice

    N-Protect S is usually spread at rates of between 40 and 300 kg/ha. Actual spreading rates will vary according to farm type, climate, productivity and soil type. Soil testing and fertiliser plans are available to ensure you use the right product at the correct rate. Call our Customer Centre for information.

    It is better to make several small to medium applications at intervals to minimise leaching losses and increase efficient use of the N applied compared with single heavy applications. N-Protect should not be mixed for any length of time with other fertilisers as problems of physical quality may result.

    Because of the high N concentration in N-Protect S, it is very important to achieve an even spread. Make sure that the application equipment has been correctly calibrated and is properly used.

    Do not drill on contact with or close to seed, due to the risk of germination damage.

    The coating slows down the hydrolysis of urea by the urease enzyme naturally occurring in our soils. This in turn slows down the increase in pH around the hydrolysing urea granules. High pH around the granules leads to ammonium ions (NH4+) being converted to ammonia gas (NH3) which volatilises to the atmosphere.