Sep 18, 2014
Home| Tools| Events| Blogs| Discussions Sign UpLogin

Calculate N Carryover -- Monitor Soil Temps

October 26, 2012
By: Davis Michaelsen, Pro Farmer Inputs Monitor Editor

The fall fertilizer application window is wide open right now. Aside from visiting your Inputs Monitor Regional Pricing Index, consider the following...

While the air has cooled significantly in the last few days, it may take some time for the soil to follow. Bearing in mind that NH3 applications (click here for more) are best made when soil temps are 50 degrees F or below, visit ISU Extension's real-time soil temperature data map to pinpoint the best time to apply for maximum effect.

ISU's real-time soil temperature map can be found here --

Nitrogen carryover in a drought year can be tricky to figure, (click here for more) but ISU Extension experts have that covered as well with their corn nitrogen rate calculator. This handy tool is updated frequently and the accompanying data contains 214 trials for corn-on-soybeans and 111 trials for corn-on-corn.

ISU's Corn Nitrogen Rate Calculator can be found here --                                                     

Your Inputs Monitor always reccomends doing your homework and these are great tools to help you maximize your efficiency.


See Comments


Log In or Sign Up to comment

COMMENTS (1 Comments)

- Pasco, WA
Do you have a nitrogen calculation for wheat as well?
11:22 PM Oct 29th



Receive the latest news, information and commentary customized for you. Sign up to receive the AgWeb Daily eNewsletter today!.

Enter Zip Code below to view live local results:
The Home Page of Agriculture
© 2014 Farm Journal, Inc. All Rights Reserved|Web site design and development by|Site Map|Privacy Policy|Terms & Conditions