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Re: Question on maize growing IA Gary
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Posted by Gerald J. on May 31, 2007 at 09:52:49 from (67.0.96.21):
In Reply to: Question on maize growing IA Gary posted by David in Wales on May 31, 2007 at 09:19:41:
We can plant coated corn in 40 degree F soil and it comes up when the soil temperature gets up to about 56 degrees F. This year in central Iowa I planted my corn May 17, 18, and 19 with soil temperature close to 68 degrees F and the corn was up 5" in a week. No need to add heat. It should have a good growing season, most of mine was rated a 106 days, some was 108. Thats time to maturity, but corn is a heat sensitive crop depending more on total growing degree days or heat units. If the fall is warm it will mature earlier in days and be dryer when harvested than if the fall is cool. With moderate size operations planting 1500 acres of corn, laying and lifting plastic would be difficult (65 million square feet). I could see plastic used for very early sweet corn crops (those that are the sweetest tend to need shorter seasons than field corn, though at the right minute field corn is sweet too) in small plots but not 80 acre fields. Our Iowa growing season is great for growing corn and soy beans and the seed breeders provide us with a large selection (seems like 10,000 when its time to choose) of latitude specific varieties. Gerald J.
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