Potato Review Group

Contents

Background

Foliar application of manganese

Further information:

Manganese notes

 

Background

  1. Manganese is a constituent of some respiratory enzymes and of some enzymes involved in protein synthesis.
  2. Manganese may increase the incorporation of sugars into starch, resulting in an increased photosynthetic rate.
  3. Availability in soil declines with increasing pH; manganese can form complexes with organic matter.
  4. Deficiency or toxicity can result in reduced plant growth reduced number of stolons.
  5. The fastest rate of uptake occurs 30 – 40 days after emergence.

More …

 

Foliar application of manganese

  1. Rate of application = 600 g Mn ha-1. More …
  2. “Sufficient” concentration on foliage = 30 – 250 ppm Mn when plants 30 cm high. More …
  3. Do not apply while stolon tips are swelling.
  4. Do not apply in a tank mix with both magnesium and zinc. More …

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Further information

Manganese notes

Manganese 2013 (Physiology and requirements of manganese)

Micro-nutrients 2001 (Includes manganese physiology)

Foliar micro-nutrients 2000 (Includes manganese applied with other micro-nutrients)

Micro-nutrients 1999 (Includes manganese applied with blight fungicides)

 

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