A technical A technical

A technical
KNOCK-OUT
How Dual Salt Technology
makes glyphosate even more effective
®
Improved knockdown
performance
Dual Salt Technology is a unique
Australian innovation developed by
Nufarm to deliver improved levels
of in-field performance compared to
other glyphosate formulations.
Unlike other glyphosate products, Dual
Salt Technology uses two bases to form an
advanced glyphosate salt that aids solubility
and improved uptake by the plant.
These bases are combined with a tailored
surfactant package to ensure Weedmaster
DST delivers optimal efficacy in a range
of conditions: excellent stability at low
temperatures, mixing in hard water and
compatibility with other tank mix partners.
The Dual Salt Technology
difference
The in-field performance of glyphosate formulations can vary
significantly, depending upon a variety of key factors that include:
• The concentration of glyphosate acid used in
the formulations.
• The combination, type and concentration of
salts and surfactants they contain.
For growers, our Dual Salt technology
products provide the confidence and peace
of mind of knowing they will get the job
done right, the first time!
Every Dual Salt Technology product is the result
of years of research, testing dozens of different
chemical combinations to find the optimal ratios of
two glyphosate salts and surfactants.
Aris Panayi
Nufarm Formulation
Development Manager
Each formulation is unique, but the addition of a second
salt delivers consistent benefits:
Enhanced
tank mixing
compatibility
+
Faster brownout
in targeted weeds
through accelerated
uptake
+
Easier handling,
with reduced foaming
and improved viscosity
(easy pouring and pumping)
Original Australian
Science
Ever since glyphosate was launched in the 1970s,
most standard formulations have contained just
one glyphosate salt: either the potassium salt or
the isopropylamine (IPA) salt.
It took years of research by the Australian development
team at Nufarm to discover and confirm that adding
a second, mono-ammonium salt – in combination with
a unique surfactant package – could make glyphosate
even more effective and easier to use.
Glyphosate acid
NH4+
H
C
H
K+
Potassium
C
H
H
O
H
H
Unique surfactant packages
Using the right surfactants plays a crucial role in creating
a successful and effective glyphosate formulation
because it is the surfactant and glyphosate combination
that helps deliver the active to the site of action.
• allows for a higher active loading.
• improves tank mix compatibility.
P
O
H
The use of a mono-ammonium salt in
combination with a unique surfactant
system in the formulation:
• reduces foaming and viscosity
(thickening in cold conditions).
N
O
Dual Salts
• accelerates plant uptake because
the glyphosate passes through the
cuticle into the plant sap transport
system more quickly.
K
H
N
H
O
H
C
Single Salt
Glyphosate acid is not soluble in water. In order
to make it soluble, it must be reacted with a base.
Glyphosate-potassium or glyphosate-IPA salt is
essential so the glyphosate solubilises and remains
stable in solution.
O
mono-ammonium
=
improved
weed control
across a
range of
conditions
Each Dual Salt Technology formulation includes a
proprietary surfactant ideally suited to the particular
concentration and combination of salts and tested to
partner well with adjuvants like LI 700®.
Perfecting the Weedmaster DST
formulation alone involved over
10,000 hours of research and
development work, with 60
formulations tested in the lab
and 73 field trials conducted
over 5 years.
The Dual Salt
Technology range
Easier handling
Improved viscosity for easier pouring
400
350
300
Viscosity (cP)
Dual Salt Technology
can make glyphosate
formulations easier to
pour and/or pump in cold
conditions. As this graph
shows, Glyphosate 450 CT
became about three times
as viscous at the lower
temperature, whereas
Weedmaster DST remained
easy to pour.
Dual Salt Technology was developed to deliver improved levels of in-field performance, and it does.
Each Dual Salt Technology formulation can outperform standard formulations with similar concentrations
of glyphosate.
250
200
150
100
50
0
20
5
Temperature (°C)
Weedmaster DST
Standard glyphosate 450 CT
Reduced foaming for easier pumping
100
Dual-salt versatility
for horticulture &
industrial solutions
• 470g/L glyphosate with Dual Salt Technology
• Outstanding results on difficult-to-control weeds
• Enhanced compatibility with a range of tank mix
partners
• Excellent stability in low temperatures
• Low foaming for fast and easy pumping
• 360g/L glyphosate with Dual Salt Technology
• Aquatically approved surfactant for use near
waterways
• Fast brownout of target weeds
• Excellent tank mix compatibility
• High surfactant loading for use at high water rates
90
80
Foam level (mm)
Excessive foaming can
slow the filling process of
conventional glyphosate
formulations. Dual
Salt Technology can
dramatically reduce the
level of foaming – in this
instance it was 50% less at
40 seconds.
Innovative chemistry
for year-round
weed control
70
60
50
40
30
20
10
0
0
20
40
60
120
Powerful new formulation coming soon.
Time (seconds)
Weedmaster DST
WATCH THIS SPACE!
Standard glyphosate 450 CT
Dual Salt Technology
Unique Australian knockdown knowhow
• Better weed control in difficult conditions.
• Easier handling.
• Faster brownout.
• Faster pumping and pouring.
• Improved tank mix flexibility.
Improved efficacy in the field, faster
brownout, better tank mix compatibility
and easier handling are the characteristics
of our Dual Salt Technology products that
growers really appreciate.
Aris Panayi
Nufarm Formulation Development Manager
For more information contact your local Nufarm Area Sales Manager. nufarm.com.au/contacts
This publication is a guide only and no substitute for professional or expert advice. The product label should be consulted before use of any of the
products referred to in this publication. Nufarm Australia Limited shall not be liable for any results, loss or damage whatsoever, whether consequential
or otherwise through the use or application of products and/or materials referred to herein.
Weedmaster, Dual Salt Technology, DST and DUO are registered trademarks of Nufarm Australia Limited. ACN80004377780.
LI 700 is a registered trademark of United Agri Products Inc. used under license by Nufarm Autralia Limited.
®