Every year corn producers somewhere struggle with drought conditions. The extent of corn yield loss is determined by stage of growth when drought hits as well as the hybrid's ability to withstand drought stress.
Water Needs and Drought Effects
Estimated corn evapotranspiration and yield loss per stress day during various stages of growth
Common Drought-Induced Nutrient Deficiency Symptoms
Nitrogen Deficiency. Yellow with necrosis up the midrib and lower leaves.
Nutrients enter plant roots by:
3. Root interception
Without water roots may not grow well and nutrient movement in the soil is limited.
Nutrient remobilization in the plant will occur when corn can't access nutrients in the soil due to poor root growth or lack of soil moisture.