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Nutrient Deficiency Symptoms
Pests & Diseases
Home > Agronomic Practices > Nutrient Deficiency Symptoms
Nutrient Deficiency Symptoms

Nitrogen

  • Die back of older leaves.
  • Leaf baldes turn light green to yellow.
  • Short and slender stalks
  • Tips and margins of older leaves become necrotic.

 

  

In the picture: Nitrogen deficiency symptom (Source: D.L. Anderson)

 

 

 

 

 

In the picture: phosphorus deficiency symptom

  

Phosphorus

  • Red and purple discolouration of tips and margins
  • Slender leaves
  • Short sand slender stalks
  • Poor or no tillering

 

Potassium

  • Yellow-orange chlorosis of leaf borders & tips
  • Stalks slender
  • Older leaves brown or "fired"
  • Spindles distorted producing "bunched top" or "fan' appearance.

 

Calcium

  • Mottling and chlorosis of older leaves
  • Spindles often become necrotic at the leaf tip and long margins
  • Rusty appearance and premature death of older leaves

 

In the picture (Source: D.L. Anderson):

Magnesium deficiency symptom

 

Magnesium

  • Mottled or chlorotic appearance at the tip and margins
  • Red necrotic lesions resulting in "rusty" appearance
  • Internal browning of rind

 

Sulphur

  • Chlorotic young leaves
  • Narrower and shorter leaves with faint purplish tinge
  • Slender stalks

  

Copper

  • Green splotches with leaves eventually showing bleaching
  • Stalk and meristems lack turgidity
  • Reduced internodal length and tillering.

 

In the picture : 

Iron deficiency symptom

  

Iron

  • Varying degrees of chlorosis
  • Interveinal chlorosis from tip to base of leaves.

  

Manganese

  • Occurrence of interveinal chlorosis from leaf tip towards the middle of leaf.
  • Bleaching of leaves under severe deficiency.

 

Boron

  • Distorted leaves
  • Formation of translucent lesions or water sacks along leaf margins
  • Brittle and bunched with many tillers
  • Death of apical meristem.

 

In the picture: Molybdenum deficiency symptom (source: J.E. Bowen)

 

Molybdenum

  • Short longitudinal chlorotic streaks on the top one-third of the leaf.
  • Short and slender stalks
  • Slow vegetative growth.

  

Zinc

  • Midrib and leaf margin remain green and yellowing of leaf blade
  • Red lesions on leaves
  • Reduced tillering and shorter internodes
  • Thin stalks with loss of turgidity.

 

 

 

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