Image Number: 1402101

Chlorine Toxicity (Cl); There is evidence that 20-30 lb/a of Cl may improve tobacco yield. Higher rates may reduce growth and cause leaves to become abnormally green, thickened, and brittle, with cupped leaf margins. Leaves may have a distinctive smooth, sleek appearance. Toxicity symptoms are more common when ammonium rather that nitrate nitrogen is used. Maintaining soil pH about 5.7-6.0 reduces Cl uptake. Cured leaves have dingy, uneven colors and may tend to absorb excess moisture.
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United States


Kingdom: Other damage agents
Phylum: Other damage agents
Class: Other damage agents
Order: Abiotic
Family: Nutrient toxicity
Subject: nutrient excess or toxicity (general)


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