Corn Planting Based On Soil Temperature, Not The Calendar
Planting corn early can help maximize yield, but doing so in cold, wet soils may backfire. Cold soil temperatures below 10°C can cause chilling injury, poor germination, slow emergence, and increased disease risk. Wet, saturated soils can limit oxygen, further stressing young plants and inviting issues like Seedling Blight or Smut later in the season. Compaction from early fieldwork in wet conditions may cause lasting damage—research shows most compaction occurs during the first field pass.