Sep 21, 2014
Home| Tools| Events| Blogs| Discussions| Sign UpLogin

Alfalfa Should Weather Cold Snap

January 9, 2014
Alfalfa 2
  
 
 

The recent sub-zero temperatures across much of the Midwest and Northeast are of concern for alfalfa, especially since upwards of half the crop died last year due to winterkill.

"Alfalfa can survive temperatures of 10° to 15°F," says Dan Undersander, a forage agronomist with the University of Wisconsin.

"As little as 4 inches of loose snow will insulate against 16°F of air temperature," he says. "The crown [of the alfalfa plant] is insulated by soil as well. Therefore, the crucial temperature is the temperature at 2 to 4 inches below the soil surface.

As a result, soil temperatures at depths of 2 to 4 inches  covered by 4 inches or more of snow will generally still be at 28° to 32°F, Undersander says. "This situation should indicate little or no injury or kill of alfalfa from the recent cold snap," he says.

See Comments


 
Log In or Sign Up to comment

COMMENTS

No comments have been posted



Name:

Comments:

Legacy Newsletter

Hot Links & Cool Tools

    •  
    •  
    •  
    •  
    •  
    •  
    •  

facebook twitter youtube View More>>
 
 

Follow Us

Facebook Twitter You Tube
 
 
 
The Home Page of Agriculture
© 2014 Farm Journal, Inc. All Rights Reserved|Web site design and development by AmericanEagle.com|Site Map|Privacy Policy|Terms & Conditions