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Nitrogen deficiency
Tomato Nitrogen Deficient
A nitrogen deficient tomato leaf

Nitrogen deficiency occurs if the nitrogen content of the growing medium is not topped up. Heavy rainfall can cause the minerals to be washed away. Compost has the nutrients in it to last for the first months of a plant's life[1], but plants will become deficient in nutrients if they are not potted on.

SymptomsEdit

Growth dwarfed, thin and upright habit; stem and petioles rigid; leaves pale green, occasional purplish tints, older leaves yellowing.

TreatmentEdit

As a booster, top-dress with nitrate of soda, sulphate of ammonia or Nitro-chalk at a rate of 60g/m² (2oz/yd²). As a more permanent cure, dig in all available garden compost or farmyard manure.[2]

ExamplesEdit

ReferencesEdit

  1. "Sorry-looking tomatoes" - "Tomatoking"
  2. (1994). Food From Your Garden & Allotment. Reader's Digest Association Ltd, London. ISBN: 978 276 44336 7

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