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Seaweed farming or kelp farming is the practice of cultivating and harvesting seaweed. In its simplest form farmers gather from natural beds, while at the other extreme farmers fully control the crop's life cycle .
Additionally, exploitation of kelp resources for potash production left little kelp behind for local fertilizer and coastal land became more desirable than inland regions. [18] [21] The Scottish seaweed industry went through multiple boom and bust cycles, employing 10,000 families and producing 3,000 tonnes of ash per year during its peak.
It was also been used for certain herbal teas, particularly kelp teas. [6] [33] It has long been used as an organic and mainstream fertilizer for many varieties of crops due to its combination of both macronutrients, (N, P, and K) and micronutrients (Ca, Mg, S, Mn, Cu, Fe, Zn, etc.).
Commercial fertilizers have their place; a balanced, low-number fertilizer is fine for nourishing hanging baskets, container plantings, and annual vegetables. Most woody and perennial plants do ...
An alternative offset would be to cultivate kelp forests. Kelp can grow at 2 feet per day, 30 times faster than terrestrial plants. Planting kelp across 10% of the oceans (4.5 x the area of Australia) could provide the same offset. Additionally, the kelp would support a fish harvest of 2 megatons per year and reduce ocean acidification. Large ...
Kelp ash On the Orkney islands ... In 1790, the sale of ashes could generate $3.25 to $6.25 per acre ... Fertilizer use is the main driver behind potash consumption ...
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