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Northern Illinois Agriculture

University of Illinois Extension
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Later planting = spotty emergence at NIARC

Posted by Russel Higgins -

One would normally expect emergence to be a non issue as crops are planted later in the growing season and into warmer soils. In 2012 we experienced localized poor emergence in our late planted crops (May 15th or later) due to the dry soil conditions in the seed placement zone. Further investigation revealed that two of our row units planted between 3/8 and 1/2" shallower (despite identical settings) than the other two units on our four row planter. In a year with adequate moisture it has never been an issue, but with the lack of rain near planting for these crops the problem was obvious. In areas seed that has not imbibed enough water to initiate germination can be found 30" from a V2 plant in a neighboring row. Another lesson learned!

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