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Raw
Materials
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Descriptions
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Nutralene ®
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Nutralene® is produced in a similar reaction as
Nitroform®, but with a wider urea to formaldehyde
ratio. A much higher percentage of the nitrogen is
released over a shorter period because of increased
solubility. Nitrogen is released over 12 to 16 weeks
by hydrolysis and microbial activity with minimal risk
of burning.
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Nitroform ®
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Nitroform® is
a controlled-release nitrogen. It is manufactured
by reacting urea with formaldehyde to provide slow
release nitrogen in carbon-linked polymers, which
last up to 12 months of growing season.
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S.C.U ® and
PSCU
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S.C.U.® is produced
by applying a coating of molten sulfur on heated
urea granules, then adding an additional sealant
to improve the integrity of the coating. In much
the same way as encapsulation permits slow release
of cold medication, this double coating provides
a physical barrier for the urea, which is then
slowly broken down by moisture, microorganisms
and abrasion. Although S.C.U.® is very effective,
it is not quite as predictable as reacted products
like Nitroform® and Nutralene®.
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PCU
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Polymer
Coated Urea (PCU) is manufactured
by coating a soluble N source such as urea or
potassium nitrate with a protective polymer or
resin layer. However, PCU rely on osmosis rather
than coating imperfections to release Nitrogen
through a semi-permeable membrane.
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IBDU
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IB
Nitrogen is another reacted urea-based slow release
nitrogen. It is totally dependent on moisture
for release and is therefore ideal in situations
where turf or ornamentals are under irrigation.
Unlike Nitroform®, IB Nitrogen has none of
the benefits of soil microbe enhancement. However,
it is a very safe nitrogen source to use in high
maintenance turf (e.g. golf greens) and the professional
horticultural market.
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