Posted: 26/11/2012 at 21:56
I use seaweed in all manners of ways. When fresh from the beach it's used as a mulch in pots, it dries out quickly, goes black and doesn't smell. I cut it up so it goes further as some of my pots are quite small.
I've also dug it into veg beds and into the GH bed, tomartoes love it, as do potatoes. Depending on the weather it breaks down fairly quickly.
You can also make a liquid feed from seaweed. I tie up a couple of bags, punch holes in the bags and immerse in water for about six weeks. It can then be bottled up and diluted down with water whenready to use. I use it on stuff you would usually use tom feed on.
The soggy stuff left in the bags does smell but spread on your beds and dug in stops it smelling and enriches the soil.
You can also use the liquid as an organic spray against slugs and snails but need to start spraying about March time before any infestations set in. It may even deter other pests. I don't think it kills pests, just puts them off eating the stuff sprayed.