Volume
4 Issue 12
August 16, 2007
Planning Ahead for Winter Wheat
Although some of the spring wheat crop is still in the field, it
is good to think ahead and explore the potential of seeding winter
wheat. If it survives the winter and spring cold, winter wheat has
an advantage of a longer growing season than spring wheat, because
it establishes in the fall and starts growth early in the spring.
There are a number of benefits in the cropping system of seeding
winter wheat. Winter wheat is a good weed competitor in the spring,
and wild oat herbicide may not be required, saving on input costs.
When seeded in September, the soil will be covered during the
winter and will reduce the risk of wind erosion (if there is no
sufficient snow cover).
Spreading of the workload as seeding takes place in the fall
instead of the busy spring, and harvesting will be earlier than
spring wheat.
Most of the Nitrogen fertilizer decisions can be made in the
spring.
Winter wheat has a great potential to tiller and fill in gaps.
May reduce the risk of Fusarium head blight due to early
development and maturity. However, none of the winter wheat
varieties have much of any resistance to Fusarium head bight
compared to the current spring wheat varieties.
There are, of course, also some risks associated with winter
wheat production. The main risk is the survival of the crop during a
harsh winter and cold spring. The price and quality of winter wheat
are less than spring wheat. When the crop is treated with care
(including timely seeding, right plant population, fertilizer, etc)
winter wheat can be a viable crop in the farming operation.
The recommended seeding period for winter wheat for northwest
Minnesota is the first week of September and for the remaining part
of the state the middle part of September.
Planting after the recommended dates may reduce winter survival
and grain yields. Winter wheat should be seeded at a rate to obtain
one million established plants per acre.
Winter wheat nitrogen needs can be met in early spring. Ammonium
nitrate is often superior to urea for late spring applications but
should not be applied in the fall because of leaching and soil
movement concerns. Spring nitrogen applications should be made as
soon as possible after the crop breaks dormancy, but no later than
fifth leaf stage.
No-till seeding of winter wheat into standing stubble from a
previous crop is a successful method of reducing the risk of
winterkill. During the winter the standing stubble traps snow. The
snow cover keeps soil temperatures warm enough to allow winter wheat
to overwinter.
It is not recommended to plant winter wheat following a spring or
winter wheat crop due to increased potential for plant diseases.
Winter wheat fits well in a rotational system with any broadleaf
crop that allows timely planting.
A source for the production information about winter wheat in
Northwest MN and ND can be found on the Internet:
Winter wheat in Minnesota
http://www3.extension.umn.edu/distribution/cropsystems/DC8421.html
Winter Wheat Production in North Dakota
http://www.ext.nodak.edu/extpubs/plantsci/smgrains/eb33w.htm
An excellent website with information on wheat production can be
found at:
http://www.smallgrains.org/Production_Library/production_library.htm
Jim Stordahl, Polk and Clearwater Counties
U of Minnesota Extension
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