Blog Banner

Northern Illinois Agriculture

University of Illinois Extension
1-DSCN2259

Soybean maturity and planting date research

Posted by Russel Higgins -

Jake Vossenkemper, graduate research assistant in the Department of Crop Sciences at the University of Illinois shared preliminary findings on a three year research project evaluating yield effects from soybean maturity and planting date at the NIARC Agronomy Day. At the end of this growing season; two years of data will have been collected at our research center. The take home message from Jake's presentation for northern Illinois soybean growers;

  • Soybean yield begins to decrease as planting is delayed beyond late April, and yield loss accelerates as planting is delayed past mid-May.
  • Well-adapted, full season varieties generally produce higher yields than early-maturing varieties, especially at early planting.
  • Based on his preliminary results, you can expect well-adapted,full season varieties to have more days of reproductive development and (often) higher grain yield with early planting.
  • In northern Illinois, that would be maturities ranging from 2.6 to as full as 3.4

We will share the 2014 NIARC results post-harvest. The early and late planting dates (both significantly affected by weather) are May 20th and June 27th.


Please share this article with your friends!
Share on Facebook Tweet on Twitter Pin on Pinterest