Cobalt

Cobalt is not an essential element for plants, as it is not found in all plant tissues, but it is important for the diet of ruminants and for its presence in vitamin B₁₂. Like molybdenum, it activates the atmospheric nitrogen fixation processes by bacteria. In the absence of cobalt, the root tubercles have stunted development. Physiopathy due to cobalt deficiency is evident with leaf chlorosis and limited vegetative development.

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