July/August 2021 - 16

potatoes means losing moisture out of
the potato, said Erwin Zandstra, sales
engineer at Tolsma-Grisnich.
" You will need to add humidity, but also,
if you can control your storage the way
we do it - based on product temperature
and the actual needs of the product - you
can minimize your refrigeration and
ventilation hours, " he said.
HARVEST CONDITIONS
IMPACT LONG-TERM STORAGE
Changing weather patterns don't just
impact pulp temperature at harvest;
they also significantly narrow harvest
windows, said University of Idaho
potato specialist Nora Olsen. With a
lot of acreage to get out of the fields
in a short amount of time, it's possible
that growers are harvesting outside the
recommended range and into riskier
harvest temperatures.
Once harvested, growers will need
to remove field heat in storage and
cool potatoes as quickly as possible.
Where outside temperatures remain
warm, growers will need to rely on
" Our job is to maintain as much quality as we can
when we transition from the field to the storage. "
- Brian Winn, Global Sales Director, 1,4Group
refrigeration to do this, she said.
But not all U.S. potato storages are
equipped with refrigeration. In fact,
Forbush said most are ambient stores.
If used, refrigeration needs to have the
high capacity to remove that kind of
heat, said Olsen. Where cooling air is
not abundant, a ventilation system can
be used to bring in cool air, and that
means increased airflow.
" In our arid regions, we can use
evaporative cooling to our advantage
to further cool the incoming air into
the storage and provide more cooling, "
said Olsen. " This will provide greater
opportunity to either get to our target
temperatures, as well as maintain, even
under warmer conditions. "
Coming out of the field, high pulp
temperatures need to be removed
in order to lower the risk of disease
development, weight loss and the
potential for pressure bruise, further
aging of the crop, and overall reduced
quality. Olsen said variety development
to withstand these warmer conditions
will be needed.
Shorter dormancy is another risk of
storing uncooled potatoes. Tubers that
are agronomically stressed from high
temperatures, insect pressure or poor
skin set, can become physiologically
aged, said Brian Winn, Global Sales
Director of 1,4Group.
1,4Group offers a dormancy enhancer
that helps deal with the stresses of a
tough agronomic season.
" When a tuber becomes physiologically
aged, it's going to want to sprout earlier
than it normally would compared to
CONGRATULATIONS
Ronald Wagner
Wagner Farms
Rome, NY
MycoApply® EndoMaxx® | DiPel® DF Biological Insecticide | PyGanic® Crop Protection EC 1.4II
/5.0II
Products That Work, From People Who Care® | valent.com | 800-6-VALENT (682-5368)
Always read and follow label instructions.
Products That Work, From People Who Care is a registered trademark of Valent U.S.A. LLC. DiPel lvbcbughlvwguggbwucggp cunbr gbYcogqwbElr Vf lgqf gvbOOF,
EndoMaxx cqgbMycoApply cugbughlvwguggbwucggp cunvbr gbP Bf r uuklCcobDssolf cwlr qv'bOOF,bPyGanic is a registered trademark of McLaughlin Gormley King
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16
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July/August 2021

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