Spudman March 2023 - 28

A reduction in N and increase in Ca in preplant and early growth often produces healthier, more resilient potatoes.
Then, at planting, there would be a
reduction in nitrogen with a stronger
biological planter band accompanied
by a biological seed coat.
" Growers can still do the biological
planter band even if they're using
mancozeb or other fungicides on the
seed, " said James Dunlop, Advancing Eco
Agriculture consultant. " The biological
planter band will still be effective. "
COMBINING BIOLOGY WITH
CHEMICAL SPRAYS
If the introduction of biology is
followed up with something like a
broadleaf herbicide or fungicide, how
are these two methods supposed to
work hand in hand?
It's a legitimate question, said Tulley,
and in his experience, the workaround
has been to follow up chemical sprays
with the reintroduction of biology.
For potato growers, the
reintroduction of biology often
translates into stronger, healthier
potatoes, which can increase bruise28
Spudman
* March 2023
free percentages. When there's been
too much applied N contributing to
those leaky cells, potatoes become less
dense and less durable.
IMPORTANCE OF CALCIUM
Both Tulley and Dunlop stress the
importance of calcium in potatoes,
and if there is an over application
of potassium, calcium uptake will
be inhibited.
" If there's a ton of potassium in the
soil, the plant will uptake that instead
of the calcium, " said Tulley. " Just like
nitrogen, potassium contributes to
vegetative-dominant growth. "
Calcium is important for stronger
cells early in the potato growth cycle,
as cell walls and membranes require
high levels of calcium. If the soil
environment supports the uptake of
calcium, potatoes will make more cells,
allowing them to be firmer, denser and
less prone to bruising.
The potassium-calcium relationship
is one of the most important ones
Tulley and Dunlop come across, and
this is true for a lot of different crops.
" We typically want a lot of calcium
early on in the season, like with tuber
initiation, but then after that, when
we're bulking, then it's OK to have some
potassium out there, " said Dunlop.
A lot of this has to do with timing,
and there is often plenty of nitrogen
available for young plants because
bacteria are still working in the soils
over the winter period. Sap analysis can
accurately confirm (or refute, depending
on the field) a farmer's ability to reduce
upfront nitrogen.
Underneath all these systems is an
overall goal to increase yield and ROI
while improving soils and plant health.
It's a ripple effect, where growers
can take money that would have
been spent on nitrogen and apply it
toward soil biological inoculants and
micronutrients that improve overall
plant health.
" We try to farm in a way that supports
the biological system, " Tulley said.

Spudman March 2023

Table of Contents for the Digital Edition of Spudman March 2023

Spudman March 2023 - 1
Spudman March 2023 - 1A
Spudman March 2023 - 2A
Spudman March 2023 - 2
Spudman March 2023 - 3
Spudman March 2023 - 4
Spudman March 2023 - 5
Spudman March 2023 - 6
Spudman March 2023 - 7
Spudman March 2023 - 8
Spudman March 2023 - 9
Spudman March 2023 - 10
Spudman March 2023 - 11
Spudman March 2023 - 12
Spudman March 2023 - 13
Spudman March 2023 - 14
Spudman March 2023 - 15
Spudman March 2023 - 16
Spudman March 2023 - 17
Spudman March 2023 - 18
Spudman March 2023 - 19
Spudman March 2023 - 20
Spudman March 2023 - 21
Spudman March 2023 - 22
Spudman March 2023 - 23
Spudman March 2023 - 24
Spudman March 2023 - 25
Spudman March 2023 - 26
Spudman March 2023 - 27
Spudman March 2023 - 28
Spudman March 2023 - 29
Spudman March 2023 - 30
Spudman March 2023 - 31
Spudman March 2023 - 32
Spudman March 2023 - 33
Spudman March 2023 - 34
Spudman March 2023 - 35
Spudman March 2023 - 36
Spudman March 2023 - 37
Spudman March 2023 - 38
Spudman March 2023 - 39
Spudman March 2023 - 40
Spudman March 2023 - 41
Spudman March 2023 - 42
Spudman March 2023 - 43
Spudman March 2023 - 44
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-potato-expo-2025-digital-guide
https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2025
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/february-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-january-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-november-december-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-september-october-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-july-august-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-may-june-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-april-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-march-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-february-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-january-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-november-december-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-september-october-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-july-august-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/february-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/february-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/february-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/february-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/basf-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2019
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