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Corn Nutrient Deficiency Symptoms

leaves

Corn Leaf Damage Symptoms

Healthy Roots

healthy corn root system

Phosphate Shortage

damage to corn roots from phosphate shortage

Rootworm Damage

corn roots showing damage from rootworms

Shallow Root System

corn root system that is too shallow

Discolored Roots

Pruned Roots

corn root system showing damage from pruning

Twisted Roots

corn roots showing chemical damage symptoms

roots

Normal Ears

normal corn ear

Large Ears

larger ear than normal

Small Ears

smaller ear than normal

Potash Shortage

Phosphate Shortage

corn ear showing phosphate shortage symptoms

Nitrogen Shortage

corn ear showing nitrogen shortage symptoms

Green Silks

corn ear with green silks

Unpollinated Kernels

corn ear showing unpollinate kernels

ears

 

Drawings courtesy of Maynard Reece.
Republished by special permission from The Curtis Publishing Company.