April 6, 2020 | By Rupp Seeds
After planting, corn seeds require adequate soil moisture and soil temperature of 50 degrees F or above to germinate and around 100 (can range from 90 to 150) growing degree days (GDD) or heat units for the seedlings to emerge from the soil. Emergence may be delayed if corn seeds are planted into cold soils that become saturated, and if the delay is too long, emergence may be uneven, seedlings may be weak or diseased, and expected plant population may be decreased.
Cold soils and saturated soils can contribute to: Imbibitional Chilling and Cold Soils, Compaction, Flooding and Crusting, and Flooding after Emergence. Learn more about the risks involved in each of these scenarios and the steps you can take to manage them in this issue of SeedScoop.Effects of Cold and Saturated Soils on Corn Germination, Emergence and Growth