Fertilizer burn
Fertilizer burn on a leaf.
Fertilizer burn is defined as leaf scorch resulting from over-fertilization, usually referring to excess nitrogen salts.[1][2][3]
Fertilizer burn is the result of desiccation of plant tissues due to osmotic stress, creating a state of hypertonicity.
Fertilizers vary in their tendency to burn roughly in accordance with their salt index.[4]
Treatment
Fertilizer burn can be remedied by soaking the soil with water to flush out excess salts.[1] It can be prevented by applying only dilute or controlled-release fertilizer products.[1][5]
See also
- Bacterial leaf scorch
- Fertilizer
- Leaf scorch
- Chlorosis
- Soil salinity
- Biotic stress
- abiotic stress
- Ozone
References
- 1 2 3 Andrews, Gail Glick (January 1998). "Gardening and Water Quality Protection: Understanding Nitrogen Fertilizers" (PDF). Oregon State University Extension Service.
- ↑ Cornell University Plant Disease Diagnostic Clinic (August 1999). "Leaf Scorch Factsheet". Archived from the original on 20 February 2010.
- ↑ Jones, Susan (2008). "Fertilizer Burn". American Orchid Society. Archived from the original on December 25, 2010.
- ↑ Labosk, Carrie. "Understanding Salt Index of Fertilizers" (PDF). University of Wisconsin-Madison Department of Soil Science.
- ↑ Parsons, Jerry M. "Lawn Fertilization". PlantAnswers.com.
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