Seaweeds for use as fertilizers; gypsum for use as a fertilizer; phosphoric acid; organic digestate for use as fertilizers; humus top dressing; fertilizing preparations; salts for use as fertilizers; superphosphates for use as fertilizers; peat for use as fertilizers; fertilizers; nitrogenous fertilizers; phosphates for use as fertilizers; fluorine; soil conditioning preparations; calcium cyanamide for use as fertilizers; slag for use as fertilizers