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Northern Illinois Agriculture

University of Illinois Extension
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Underground growth

Posted by Russel Higgins - Corn

That period of time between planting and seed emergence can be a trying time for most farmers, it is much easier to keep an eye on the crop (at least the topgrowth) after emergence. Corn planted at the NIARC on March 29th has germinated and has about a 1/4 inch radicle. In an earlier news release Emerson Nafzigar shared that it takes about 115 growing degree days (GDD) to get corn plants to emerge after planting. Our recent weather with highs in the 80's and lows in the 50s meant that we are getting 15 to 18 GDD per day, so we might see emergence within about a week. Now that we are seeing a return to more normal April temperatures we can expect our emergence time to lengthen.


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