Information Resources for Delayed Planting of Corn and Soybean

ome where in the Midwest every year, corn and soybean growers face difficult decisions due to late or delayed planting of their crops. This Web site offers a compilation of crop management information written by crop experts from throughout the Corn Belt that address various aspects of late or delayed planting situations for corn and soybean.

When in doubt about the applicability of the information to your geographic area of the country, please contact the author(s) of the articles or consult with your own university Extension specialists. The primary field crop Extension specialists at Purdue University are listed at http://www.kingcorn.org/cafe/experts.html.

This Web site offers a compilation of crop management information written by crop experts from throughout the Corn Belt. The articles are organized by subject area. You can either scroll down the page to locate an area of interest or click on the list below.

General considerations
Crop yield potential
Crop insurance
"Safe" hybrid & variety maturities
Crop choice for delayed planting
Nitrogen fertility issues
Crop insect issues
Weed control issues

Because this page may be updated frequently in years when delayed planting is an issue, please "refresh" or "reload" your Web browser to force an update to the most current version.

When in doubt about the applicability of the information to your geographic area of the country, please contact the author(s) of the articles or consult with your own Univ Extension specialists.

These links were last verified April 2011. The dates in parentheses following the publication titles refer to the year of publication. Please send comments or dead link alerts to R.L. (Bob) Nielsen (rnielsen at purdue.edu).

Thoughts on Late Planting of Soybean (2011): Shaun Casteel, Purdue Univ.
Guidelines for Late-Planted Corn and Soybean in Minnesota (2011): Jeff Coulter & Seth Naeve, Univ. of Minnesota
Recommendations for late-planted soybeans (2011): Mike Staton, Michigan State Univ.
Optimizing the Profitability of Corn Planted in June (2011): Peter Thomison, The Ohio State Univ.
Tillage Consideration for Delayed Planting of Corn in a Wet Spring (2011): Tony Vyn, Purdue Univ.
Foregoing tillage plans during a late spring (2011): Sjoerd Duiker, Penn. State Univ.
Planting a cover crop on prevented planting acres (2011): Paul Gros, Michigan State Univ.
Cover Crops for Delayed Planting (2011): Midwest Cover Crops Council; Look for link to the cover crop selector tool.

Corn Planting Date is Important, But.... (2011): Bob Nielsen, Purdue Univ.
Delayed Planting Effects on Corn Performance: A “Historical” Perspective (2011): Peter Thomison, The Ohio State Univ.
How are corn and soybean yields impacted by delayed planting (2011): Greg Roth, Penn. State Univ.

Economics of Prevented Planting (2011): Brent Gloy, George Patrick, and Michael Boehlje; Purdue Univ.
Crop insurance weighs heavily on farmers' planting decisions (2011): Purdue/Ohio State Ag Answers
Crop Insurance Preventive Plant Options (2011): Chris Bruynis, Steve Prochaska, and Barry Ward, The Ohio State Univ.
Delayed and Prevented Planting Provisions (2011): William Edwards, Iowa State Univ.; Editorial note: This publication from Iowa State University outlines some of the key provisions of crop insurance policies relative to delayed or prevented planting. Exercise caution in your interpretation of the information contained therein because some of the details may be specific to Iowa policy-holders. Always consult directly with your own crop insurance representative about your specific crop insurance policy provisions.
Purdue ag economist urges farmers to review crop insurance (2011): Purdue/Ohio State AgAnswers
Prevented and Late Planting Provisions in Crop Insurance (2011): Gary Schnitkey, Univ. of Illinois
Economics of Prevented Planting in Corn (2011): Gary Schnitkey, Univ. of Illinois

"Safe" Hybrid Maturities for Delayed Corn Planting in Indiana (2011): Bob Nielsen, Purdue Univ.
It’s time to think about switching to shorter season hybrids (2011): Kurt Thelen, Michigan State Univ.
Corn Hybrid Relative Maturity Switch Dates (2011): Joe Lauer, Univ. of Wisconsin
Considerations for Switching Soybean Maturity Groups for Delayed Plantings (2011): Shawn Conley, Univ. of Wisconsin
Is Corn Hybrid Switching Necessary? (2011): Greg Roth, Penn. State Univ.
Hybrid Switching Issues (2011): Greg Roth, Penn. State Univ.

Planting Delays and Switching to Soybeans: A New FAST Spreadsheet (2011): Gary Schnitkey and Ryan Batts, Univ of Illinois; Editorial note: This handy Excel spreadsheet offers some assistance in making an economic decision whether to switch from corn to soybean with delayed planting. However, recognize that your choice of yield, grain price, and production costs are critically important to whether the predicted economic results will be close to accurate. My advice: Do not simply use the spreadsheet's default values, but thoughtfully input your own values. Also, recognize you are limited to selecting geographic areas only within Illinois, so non-Illini farmers should exercise caution with the use of this tool.
Profitability Analysis of Late Planted Corn Compared to Soybeans (2011): Greg Halich, Grain Crops Update, Univ of Kentucky
New Decision Aid to Determine Late Planting Options (2011): Chris Bruynis and Barry Ward, The Ohio State Univ.
Switching to Soybeans? Some points to consider (2011): Ann Dorrance & Robert Mullen, The Ohio State Univ.
Enterprise Budgets Provide Another Tool to Evaluate Your Planting Decisions (2011): Barry Ward, The Ohio State Univ.
Switching to Soybeans (2011): Keith Dickinson, Andrew Frankenfield and Greg Roth, Penn. State Univ.
Switch from corn to soybeans? Not so fast! (2011): Kent Olson and Jeff Coulter, Univ of Minnesota

Assessing Available Nitrogen from Fall- and Spring-Applied Nitrogen Applications (2011): Jim Camberato, Bob Nielsen, & Brad Joern; Purdue Univ.

How Much Nitrogen Do I Still Have? (2011): Fabian Fernandez, Univ. of Illinois
Soil Fertility and Wet Weather Response Notes (2011): Doug Beegle, Penn. State Univ.

Late Planted Corn and Insect Management (2011): Ric Bessin, Univ. of Kentucky.
Current Insect Conditions and Late Planting Concerns (2011): Ron Hammond, Andy Michel, and Mark Sulc; The Ohio State Univ.
Late Planting's Impact on Corn and Soybean Insects (2011): Mike Gray, Univ. of Illinois

Late Planting Weed Control Issues (2011): Mark Loux, The Ohio State Univ.
Wet Conditions Create Weed Management Challenges in Corn (2011): Jim Martin and J.D. Green, Univ. of Kentucky.
What Do We Do About the Yellow Fields? (2011): Bill Johnson & Glenn Nice, Purdue Univ.
Delayed Pre/Early Post Residual Corn Herbicide Options and Weather Effects (2011): Dwight Lingenfelter, Penn. State Univ.
Burndown Woes in Wet Weather (2011): Dwight Lingenfelter, Penn. State Univ.
With the Wet Weather, Consider Flexibility in Choosing Herbicides for Corn and Soybean (2011): W.S. Curran, Penn. State Univ.
Wet Conditions Create Weed Management Challenges in Corn (2011): Jim Martin & J.D. Green, Grain Crops Update, Univ of Kentucky
Cold Wet Weather and Postemergence, Spike Stage Herbicide Applications in Corn (2011): Bill Johnson & Glenn Nice, Purdue Univ. and Mark Loux, The Ohio State Univ.