Early Corn Planting Boon or Bane

Weather firm looks through mountain of data across the Corn Belt to show that early planting may not eliminate risk from heat at pollination.

Published on: May 31, 2012

With planters rolling so early this season across the Corn Belt there's hardly any time to look at data to figure out what it might mean when combines roll this fall. The weather insurance firm Climate Corporation has plowed through plenty of information to look at trends to determine just how early planting may play out later this year on a number of factors.

The company leveraged the power of the weather data platform it has built for its insurance product. Climate Corporation analyzed historic data from over 820 weather stations across 11 Corn Belt states. This analysis shows that for some areas of the Corn Belt, planting early does not substantially reduce the risk of excessive heat that can impact pollination. In other areas, however, you can get a benefit.

Weather firm looks through mountain of data to show that early planting may not eliminate risk from heat at pollination.
Weather firm looks through mountain of data to show that early planting may not eliminate risk from heat at pollination.

There were two key conclusions from the company's latest 2012 Outlook Report.

First, an early pollination period provides corn growers with a benefit related to lower temperatures at pollination in less than one out of 20 years in most of Minnesota, Wisconsin, Michigan, Ohio and Northern Iowa.

Second, early planting that advances the pollination date by even a single weak can decrease the probability of a crop experiencing yield-damaging heat by up to 40% in many locations across Kansas, Missouri, Nebraska and South Dakota.

The chart lower on this page shows the average temperatures for the hottest six weeks across the Corn Belt. The ideal pollination time would be ahead of that peak week. Pollination after that week risks hitting frost before the crop fully matures. Farmers who have planted early will want to figure their growing degree units to determine when their crop will pollinate.

You can read the complete report by downloading it from the link above.

Early Corn Planting Boon or Bane

HEAT OF THE MOMENT: Climate Corporation has figured the hottest six weeks of the summer for the Corn Belt - pollinating before this time is best.


Story Tags: Corn Belt

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  1. Anonymous says:

    Yet another marketing piece.....

  2. Anonymous says:

    I live in Nebraska in the panhandle elevation is 4200 feet. Corn was planted early, emerged well, had frost hit it, now the winds are up to 45 mph and sandblasting the 3 inch high sprouts sometimes cutting them off at ground level. The plants are turning yellow to brown leaves and have not grown in the last 10 days. Leaves are starting to curl and from a distance the fields are looking tan instead of the nice green color one would expect. We are 2 or 3 inches below normal for rain. As a matter of fact we have had only about 1 inch total this year. We are dryer than a popcorn fart! Irrigation canals are full but can only be used for hay farmers at this time. THE CORN NEEDS WATER YESTERDAY! If we get more wind it will suck all the top soil moisture out and the corn will die.

    • Willie Vogt of www.farmprogress.com says:

      Sounds like early planting may not be too good. Thanks to Climate Corp for sharing that there's more info available. We need rain before we worry about pollination for sure.

  3. Anonymous says:

    I have corn planted April 2nd that was emerged on April 11. This would be 3-5 weeks ahead for my area. The corn leaf collars are stacked so tight it resembles a bush. It is going through the stages but is extremely short due to the losey dry and hot weather conditions. My experience with this is not a bumper yield. Normal to below at best and we will need a bunch of timely rains fast and often.

  4. Anonymous says:

    As the author of this report, I thought it was worth mentioning that there is a very interesting report Appendix available which allows growers to look up the chances that any week between June 17th and July 21st will qualify as a 'Hot Week' in their specific location. That appendix can be viewed here: http://www.climate.com/assets/Outlook-Reports/Impact-of-Early-Planting-on-Heat-Risk-for-Corn-Pollination-Appendix-f.pdf Using the Bedford, IA row as an example, the Appendix shows that growers in this area have historically had only a 6% chance of experiencing a yield-damaging Hot Week if corn pollinates between June 17 and June 30, but the odds of experiencing a Hot Week rise to 16% in the first week of July, 19% in the second week of July and 22% in the third week of July. Jeff Hamlin Director of Agronomic Research The Climate Corporation jeff@climate.com

  5. Anonymous says:

    With heat this early and a lot of dry places do really think will miss the heat and git enough rain. I've been here before don't think we will!!!

  6. Anonymous says:

    with high heat this early and dry early too do you really think we can miss??

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