July/August 2021 - 19

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institute, and consultancy Eurofins to observe
how availability of copper and zinc might improve
the potato crop's ability to withstand late blight
caused by Phytophthora.
" We had some very interesting results, "
Konieczka reports. " Not only did we find that the
micronutrient combination relieved pressure on
conventional fungicide treatments, but it also
gave us a measurable yield increase.
" And it's common sense, too. If a plant is healthy,
well-fed and unstressed, of course it's less likely
to succumb to infection and disease.
" In light of the increasing number of blight strains
showing resistance to available fungicides, it's
also reassuring to find that there are other steps
growers can take to avoid infection. "
The replicated trials featured Cell Power®
a combination of copper, zinc and organic acids.
Zynergy™,
Zinc helps to maintain the plant's integumentary
system, which comprises the epidermis, leaf
cuticle and plant hairs and acts as the first line of
defense against physical damage and attack from
pathogens. High levels of zinc improve elasticity,
wound healing and disease suppression. Meanwhile
copper facilitates the production of phenolic
compounds, a diverse group of plant metabolites
that influence plant growth and defense responses.
The OMEX® R&D team developed a special
formulation that enhanced the nutrients' 'bioavailability'
- how easily the plant can absorb and
put the product to use.
" Essentially, we've created a fertilizer that acts like
a fungicide, without actually being one, " explains
Konieczka, who says that while scientists aren't
yet 100% sure of the mode of action, there is
certainty that it doesn't rely on fungicidal activity.
" What we do know is that by increasing nutrient
bio-availability, we can help the plant to better
withstand the attack by the pathogen. "
Konieczka says that in a low-fungicide input
scenario, Zynergy™ has a statistically significant
impact on disease levels when applied early in
the season.
In field plots, Zynergy™ was mixed with half-rate
fluazinam and a foliar feed. Researchers reported
that the canopy looked better than on fungicideonly
plots, which Konieczka says helps to explain
the yield increase. " A better canopy means a
longer-lasting canopy, which can photosynthesize
for longer - sending more carbohydrates to those
important tubers. "
Most striking were the trials with popular variety
Maris Piper. It accounts for around one-fifth
of the U.K. maincrop and is similar to Russet
Burbank in terms of both popularity and blight
susceptibility.
" By applying Zynergy™ in combination with foliar
feed and fluazinam, we saw a 14.5% increase in
marketable yield, a return of investment of more
than 30:1, " Konieczka observes.
" But remember: Zynergy's™ not a substitute for
fungicides. It's an additive: a highly effective foliar
fertilizer that has real benefits in an integrated
crop management system. We're not making a
plant protection claim - that's why we describe it
as a 'functional fertilizer'.
" Treat it as a protectant and you'll buy yourself a
bit more flexibility in your blight spray program.
And judging by the U.K. trials, up to 60cwt more
potatoes from each treated acre. "
Learn more at www.omexusa.com.
The product names and brands referenced here are
registered and trademarks of OMEX®
© OMEX® Agrifluids, Inc. 2021.
Agrifluids, Inc.
http://www.omexusa.com

July/August 2021

Table of Contents for the Digital Edition of July/August 2021

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