Check out a couple of articles written about wet planting.
Corn and Soybean Survival in Saturated and Flooded Soils
http://cropwatch.unl.edu/corn-and-soybean-survival-saturated-and-flooded-soils
Corn and Soybean Planting when it is Cold and Wet
http://blog-crop-news.extension.umn.edu/2017/05/corn-and-soybean-planting-when-it-is.html