Is it safe to use seaweed as a fertilizer on dug ground for a vegetable plot?Does the seaweed contain the necessary minerals needed to enrich the soil? Should I dig seaweed into the soil if it is okay to use?
You can scatter seaweed on the soil, dig it in, compost or apply it anyway you like. It releases useful amino acids and the like as it breaks down. Some crops, seaside natives originally, such as beet, asparagus and seakale, benefit especially from a top-dressing of seaweed.