In 1904, potassium deposits were discovered in French Alsace. Potassium, or potash, is one of the most essential nutrients for plants, together with nitrogen and phosphorus. That is why potash was brought out en masse to make fertilizer.
A guide to off-the-beaten-path locations in France, beyond Paris. Step inside remarkable abandoned châteaus, explore the beach of Dunkirk or explore the rich industrial heritage.
In 1904, potassium deposits were discovered in French Alsace. Potassium, or potash, is one of the most essential nutrients for plants, together with nitrogen and phosphorus. That is why potash was brought out en masse to make fertilizer.
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