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Fertilizer burn

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Title: Fertilizer burn  
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Subject: Soil conditioner, Fertilizer, Coated urea, Fertilizers, Plant nutrition
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Fertilizer burn

Fertilizer burn on a leaf

Fertiliser burn is defined as leaf scorch resulting from over-fertilisation, usually referring to excess nitrogen salts[1][2][3]

Fertiliser 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]


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


  1. ^ a b c
  2. ^
  3. ^
  4. ^ Understanding Salt index of fertilizers.
  5. ^

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