CUPRON ULD is a fertilizer based on the trace element copper from sulfate pentahydrate obtained by a special technology that allows Copper to be bound to organic matter of noble origin, which favors its use at low dosages.CUPRON ULD allows the regular performance of the plant's metabolic activities since Copper is a constituent of some enzymes and is important for the synthesis of chlorophyll.CUPRON ULD distributed by foliar means prevents and reduces Copper deficiencies by making it readily available to the plant. Copper is absorbed with difficulty by the root route because it is retained by the soil, particularly in those rich in organic matter and with an alkaline reaction.