An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Nitrogen Deficiency Nitrogen is a mobile element. Symptoms of nitrogen deficiency will appear first on the oldest leaves, and as the deficiency becomes more severe, will later appear on the younger leaves.
Expected symptoms include:
Leaves turn lighter green, then yellow and chlorotic
Loss of mass and stunting
Leaf necrosis in advanced stages
Early symptoms of nitrogen deficiency are exhibited as chlorosis in the oldest (lowest) leaves.
Healthy, nitrogen-supplied plant.
Nitrogen-deficient mature lettuce is stunted and generally chlorotic overall.