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  Section: Plant Nutrition » Micronutrients » Manganese
 
 
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Manganese Deficiency

 
     
 
Content
Introduction
Forms of Manganese and Abundance in Soils
Importance to Plants and Animals
  Essentiality of Manganese to Higher Plants
  Function in Plants
  Importance to Animals
Absorption and Mobility
  Absorption Mechanisms
  Distribution and Mobility of Manganese in Plants
Manganese Deficiency
  Prevalence
  Indicator Plants
  Symptoms
  Tolerance
Toxicity
  Prevalence
  Indicator Plants
  Symptoms
  Tolerance
Manganese and Diseases
Conclusion
References

Manganese deficiency is most prevalent in calcareous soils, the pH of which varies from 7.3 to 8.5, and the amounts of free calcium carbonate (CaCO3) also vary (68). The pH of calcareous soils is well buffered by the neutralizing effect of calcium carbonate (69). Soils that have a high organic content, low bulk density, and a low concentration of readily reducible manganese in the soil are also susceptible to producing manganese deficiency. Climatically, cool and temperate conditions are most commonly associated with manganese deficiency, although there have been reports on the same from tropical to arid areas. Drier seasons have been reported to relieve (70) or to exacerbate (71) manganese deficiency.


 
     
 
 
     



     
 
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