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Depends on the element that needs to be added, seaweed has the benefit of being a weed that can grow in the right conditions very fast.
by dubcanada 5y ago
Depends on the element that needs to be added, seaweed has the benefit of being a weed that can grow in the right conditions very fast.
- pfdietz 5y agoAnd seaweed will have the drawback of being an extremely dilute source of trace elements. Consider iodine. Seaweed is rich in iodine, which means the concentration of the element can be as high as tens of ppm by mass. Which is cheaper, applying 1 kilogram of iodine (cost about $30) to a field, mixed in with regular fertilizer, or transporting and applying tens of tonnes of seaweed?