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MICH-ORGANIC Home

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MICH-ORGANIC  September 2009

MICH-ORGANIC September 2009

Subject:

Implications of frost for corn and soybeans

From:

Vicki Morrone <[log in to unmask]>

Reply-To:

Vicki Morrone <[log in to unmask]>

Date:

Wed, 30 Sep 2009 13:22:05 -0400

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (81 lines)

This just in from Dan Hudson, MSUE agronomic crops educator in Ingham
County. If you grow corn or soybean you may want to read this.


Vicki Morrone
303 Natural Resources Bldg
C.S. Mott Group
Dept of CARRS
East Lansing, MI 48824
517-353-3542/517-282-3557 (cell)
[log in to unmask]
www.MichiganOrganic.msu.edu for information on organic and sustaianable
farming and news & events


-----Original Message-----
From: Dan Hudson [mailto:[log in to unmask]] 
Sent: Wednesday, September 30, 2009 12:30 PM
To: [log in to unmask]
Subject: Implications of frost for corn and soybeans

Ag Clients,

Since we are expecting frost tonight, I want to pass along some
information that will help you to anticipate how tonight's temperatures
might affect yield and test weight of corn and soybeans.  Some fields
have already black layered, and I was at one field late last week that
looked beautiful, but was just starting to dent.  

Rather than re-invent the wheel, I will refer you to several resources
that spell it out quite clearly.  I will preface this by saying that
this is not Michigan data, but the principles are general enough that I
am confident that they apply to us:

Table 1-29. Estimated Risks to Grain Corn Yield and Quality From
Late-Season Frost Damage
http://www.omafra.gov.on.ca/english/crops/pub811/1other.htm#table1-29 

Guidelines for Handling Corn Damaged by Frost Prior to Grain Maturity
http://corn.agronomy.wisc.edu/WCM/W156.aspx 

Potential Yield Losses in Corn From Fall Frost Damage
http://www.ces.purdue.edu/extmedia/CL/CL-9.pdf 

Assessing Frost Damage in Soybeans
http://www.ag.ndsu.edu/disaster/winterstorm/frostsoybeans.html 

Ontario perspective on soybeans damaged by frost

http://www.omafra.gov.on.ca/english/crops/pub811/2other.htm

You will notice some variability in their estimates of yield loss due to
frost at various stages, but they are fairly close. 

It is supposed to get down to 28 degrees tonight, but what matters is
the temperature in the canopy.  Zero degrees will kill the leaves, 28
will kill the whole plant, but how long those temperatures last will
affect this somewhat.  The low temperature will occur around 7:00 a.m.
tomorrow.  

If you have e-mail but no access to internet, please contact us and we
can print off some of these resources for you.

Do not hesitate to call if you have any questions.


Sincerely,

Dan Hudson

Daniel Hudson
Agriculture and Natural Resources Educator
Ingham County MSU Extension
121 E. Maple Street
P.O. Box 319
Mason, MI  48854

Office Phone: 517-676-7207 ext 7291

If you would like to access previous postings to the Mich-Organic listserv you can copy and paste the following URL into your browser address bar
 http://list.msu.edu/archives/mich-organic.html

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