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

Precision Technology Key to Fall Fertilizer Application

October 9, 2013
By: Nate Birt, Top Producer Deputy Managing Editor google + 
NitrogenFertilizerImage
  

While standard advice about fall fertilizer applications hasn’t changed too much, technology has improved the efficiency with which farmers can control inputs. That results in better risk management.

"As we’ve gotten into the world of precision, we can do a lot better job," says George Rehm, soil scientist, University of Minnesota Extension.

For nitrogen, that means planning a split application. Historically, fall nitrogen application has been confined to the western half of the Corn Belt. With advances in precision application, it’s possible to pare back nitrogen use even further to cut input losses.

"We reduce the risk by using the soil sample procedure, and then with variable rate and precision sampling, and grid sampling, and sampling by zones … this becomes more important," Rehm says.

It’s also a good idea to use nitrogen stabilizers, Rehm says, the most reliable being N-Serve and Instinct. Carefully verify the claims of any additives on the market with a fertilizer dealer, crop consultant or land-grant university expert before making a purchase, he adds.

With phosphorus and potassium, use a banded application in conjunction with GPS.

"From a risk-management standpoint, that’s the least risky when it comes to P and K," Rehm says. "I know where I’m going to put the row, I know where that band of fertilizer is, and when I band, I reduce the contact between fertilizer and soil. If I reduce the contact between fertilizer and soil, I increase the nutrient use efficiency for P and K."

Click the links below for more fall fertilizer tips:

 

See Comments

RELATED TOPICS: Fertilizer, Harvest, Inputs

 
Log In or Sign Up to comment

COMMENTS

No comments have been posted



Name:

Comments:

Receive the latest news, information and commentary customized for you. Sign up to receive Beef Today's Cattle Drive today!. Interested in the latest prices for cattle in your area? See highlights of the latest for-sale cattle in the Cattle-Exchange eNewsletter.

 
 
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