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Thursday, 30 June 2011

Magnesium (Mg) deficiency symptoms

Magnesium(Mg) deficiency symptoms:

  • Deficiency usually occurs in old plantations where Mg fertilizers have not been applied.
  • Leaf symptoms include yellowing of inter-veinal areas, changes in phyllotaxy, purple mottling on the petioles, and separation of leaf sheaths from the Pseudostem.
  • Affected plants produce smaller fruits with yellow pulp.
Control Measures:
    1. Application of Magnesium sulphate through drip @2kg/1000 plants every 4th day till 5th month.
                             (OR)
    1. Manual application of Magnesium sulphate @25g/plant every 4th day up to 4th month.

    1. Spray Magnesium sulphate @2g/l of water weekly till recovery of the symptoms.
 

Yellowish chlorosis in centre and
Green banding in leaf margins and near mid rib area
    
Yellowing of inter-veinal area
Regards,
A.Vishnu Sankar

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