Corn Root Development Issues

Corn Root Development Issues

Rootless Corn

Causes

  • Shallow plant depth
  • Open seed slice with dry soils
  • Compaction below the seed

Results

  • Lack of moisture at shallow depths doesn’t trigger nodal roots to emerge
  • Without nodal roots to anchor the plant, plants fall over
  • Can cause plants to wilt and die if hot dry weather persists

Tomahawk Roots

Causes

  • Wet planting Conditions and/or Too heavy down pressure at planting leading to sidewall compaction

Results

  • Wilting plants during hot/dry weather from compromised root systems
  • Lack of overall plant growth from reduced nutrient uptake
  • Uneven Plant Development From Plant to Plant
  • Yield Loss

Management Practices to Prevent These Issues

  • Plant at minimum 1.75” Deep
  • Avoid Planting in wet conditions and make sure closing wheels are crumbling the seed slice sidewalls
  • Adjust down pressure to match field conditions