Fertilizer burn
From Infogalactic: the planetary knowledge core
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
References
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