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Manganese    Mn   (Target Level 150 - 250 ppm)

One of the essential trace elements, Manganese plays a major role in the growth and development of plants. In the UK, it is usually deficient only in intensively farmed land and rarely in livestock. Manganese deficiency in livestock is not easy to detect in isolation but is often found simultaneously with Cobalt deficiency in the UK (see below). 60% of the soils tested in the UK in recent years were deficient in Manganese.

As a matter of interest, Manganese deficiency in humans is implicated in infertility, PMS, epilepsy, diabetes, osteoarthritis, bone-malformations and reduced HDL (beneficial cholesterol).

Manganese Deficiency in Animals                                

• Poor thrift and condition
• Scours
• High forage consumption
• Slow weight gain

Manganese Deficiency in Plants

• Poor root development
• Poor growth
• Grey speck on leaves
• Dark discoloration on leaves and legumes

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Last modified: June 24, 2003