The story of seaweed being used as a fertilizer stretches back hundreds of years. In France in the 12 the century deposits of red seaweed were used as fertilizer. The channel islanders spread seaweed on the ground and ploughed it into the fields.
Indeed in our own Ireland gathering seaweed for the fields and gardens was popular from the 1840’s. In fact the 1990 film ‘The Field’ , starring Richard Harris, centres around a field carefully maintained by the addition of seaweed. This practice although widespread, was restricted to coastal regions, due to the high costs involved in collecting, drying and transporting fresh seaweed.
Liquid seaweed extracts first appeared in the 1950’s and were a convenient method of bringing the advantages of seaweed to the marketplace. The benefits of seaweed application are many and not in question.