Sep 18, 2014

# Calculate the Cost of Late Planting

April 25, 2013
By: Pam Fretwell, Farm Journal Media Multimedia; Farm Journal Special Projects Editor

### Related Stories

#### Use this interactive spreadsheet to determine real costs for potential yield loss due to planting delays.

Sure, you wish you were in the field. But, are planting delays in April really costing you profit? Chris Barron, AgWeb’s margins expert, wanted to find out.

He put together this basic calculator for farmers to use. It estimates the potential yield loss due to planting delays.

Simply fill in the four variable questions in the tool:
1. yield estimate (five-year average)
2. % loss / day (for your location)
3. corn price \$\$
4. total acres that you want to evaluate.

Planting conditions, temperature, soil conditions and other variables may also play a larger part with regard to planting decisions.

This is just a tool to give you some flexibility with your information management and decision making. (If you have access to a tool similar or better than this one for calculating the impacts of later planting dates, please e-mail Barron at cbarron@cb-farms.com.)

Keep in mind yield loss by date varies by location. This specific chart is currently populated with numbers for the northern half of Iowa.

Hear more audio reports with Chris in AgWeb's Profit Center.

RELATED TOPICS: Corn, Farm Business, Crops, Management

Jen R. - PA
A note from Chris Barron, posted by AgWeb staff:

Bob has a great points in his response. However, the idea of a tool like this isn't to necessarily understand absolutes, but rather empower us (producers) to look at various “potential” scenarios. While at the same time, we (producers) are always considering many of the other variables such as; soil temperature, moisture levels, soil type, field history, overall workload, and the weather forecast. This tool is simply a platform for measuring “potential losses” associated with planting dates as we ponder our corn planting decisions.

Thanks,
Chris

12:50 PM Apr 26th

Jen R. - PA
A note from Chris Barron, posted by AgWeb staff:

Bob has a great points in his response. However, the idea of a tool like this isn't to necessarily understand absolutes, but rather empower us (producers) to look at various “potential” scenarios. While at the same time, we (producers) are always considering many of the other variables such as; soil temperature, moisture levels, soil type, field history, overall workload, and the weather forecast. This tool is simply a platform for measuring “potential losses” associated with planting dates as we ponder our corn planting decisions.

Thanks,
Chris

12:49 PM Apr 26th

RLNielsen
I caution anyone using this calculator to remember that absolute yield loss (bushels) due to delayed planting is relative to the optimum yield potential for 2013, which will not be known until the end of the season. Using a 5-year average to calculate a dollar loss to delayed planting will only be accurate if the 2013 optimum yield potential ends up matching that average yield value. It is true that yield potential decreases with delayed planting. However, if the remainder of the season is perfect, the yield of a late-planted crop can still be greater than the 5-year running average for that field.

For more on the corn planting date conundrum, see my recent article at http://www.kingcorn.org/news/timeless/PltDateCornYld.html.

RLNielsen, Purdue Univ, Agronomy Dept
4:29 PM Apr 25th

Name: