Welcome!
October 16, 2015
FREEZE AND FORAGES
The first freeze of
the Fall always raises questions and concerns about
the safety of grazing or mechanically harvesting forages. The bottom line is
that there are two concerns.
1.
Farmers who have planted sudangrass or sorghum-sudangrass hybrids as an annual forage should exercise good
management to avoid prussic acid poisoning.
2.
There may be a slight increase in bloat potential from alfalfa and
clover.
Steve Barnhart
addressed these issues in detail at http://crops.extension.iastate.edu/cropnews/2009/10/flurry-forage-questions-come-first-fall-frost-and-freeze.
FERTILIZER APPLICATIONS
Nitrogen
In my October 12, 2015 newsletter, I
mentioned an article written by John Sawyer last year regarding nitrogen
applications in the Fall. Shortly thereafter, John
wrote another one, which is at http://crops.extension.iastate.edu/cropnews/2015/10/fertilizer-nitrogen-application-fall.
Again, Sawyer's article from last year can be found at http://crops.extension.iastate.edu/cropnews/2014/10/fall-nitrogen-applications-and-soil-temperature.
As always, be sure soil temperatures are 50
degrees or lower and falling before applying nitrogen sources, including
manure. Soil temperatures can be monitored at http://extension.agron.iastate.edu/NPKnowledge/soiltemphistory.html.
FOR YOUR CALENDAR
Continuing
Instruction Course for Commercial Agricultural Pesticide Applicators
9:00 a.m., Wednesday, November 18, 2015
Many ISU Extension and Outreach offices (Check with
yours.)
Details and registration for this and other C-CICs are at https://www.extension.iastate.edu/psep/ComAp.html.
15th
Annual Iowa Organic Conference
2:00 p.m., Sunday, November 22 - Monday, November
23, 2015
Iowa City, IA
Details are at http://sustainability.uiowa.edu/framework/main.php?url=/2015-iowa-organic-conference.
Ag Chemical
Dealer Update
9:00 a.m., Tuesday, November 24, 2015
Iowa City, IA
Details will soon be at: http://www.aep.iastate.edu/acu/.
Private
Pesticide Applicator Continuing Instruction Courses (P-CICs)
December 1, 2015 - April 15, 2016
Tentative dates and times for this winter's P-CICs in east-central
and southeast Iowa are posted at https://www.extension.iastate.edu/Pages/eccrops/pcic.html.
Integrated
Crop Management Conference
December 2-3, 2015
Ames, IA
Details will soon be at: http://www.aep.iastate.edu/icm/.
Crop
Advantage Series
9:00 a.m., January 8, 2016 - Burlington, IA
9:00 a.m., January 14, 2016 - Moravia, IA
9:00 a.m., January 22, 2016 - Iowa City, IA
9:00 a.m., January 29, 2016 - Moline, IL
Details will soon be at: http://www.cropadvantage.org.
If you have any questions, please feel free to contact the Iowa State University Extension Office.
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