Image Number: 1402092

Nitrogen (N) deficiency may result in retarded growth and leaves with a pale green color. Lower leaves yellow prematurely, are smaller, and tend to "fire" or dry up. The stalk is short and slender, leaves tend to be more upright than normal, and flowering is delayed. Premature flowering may result if certain stresses such as low temperatures or extremeness in soil moisture interfere with N uptake and use. Symptoms of deficiency usually appear first on the sandier areas of a field after excessive rain or irrigation even when adequate N fertilizer had been previously applied.
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United States


Kingdom: Other damage agents
Phylum: Other damage agents
Class: Other damage agents
Order: Abiotic
Family: Nutrient deficiency
Subject: nitrogen deficiency


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (flue-cured type) L.
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Image uploaded:
Sunday, March 10, 2002
Image last updated:
Thursday, July 21, 2011