Re: Peat Moss as a Soil Ammendment?
One of the biggest advantages of peat moss is it is more durable than most other types of organic matter.
As for the kelp, I would compost it or at least wash it to remove the sea salt before using it.
One other point about amendments in clay soil--if you dig a hole in clay soil that does not drain, it is like having a pot without a drain. The organic matter then acts like a sponge and fills up with water --displacing oxygen--this can lead to root rot. However, if you have a slope so that you can create a hole that drains out the side, amendments will make your clay soil a very good media. The other option is to make a mixture of organic matter and the clay soil and use it as a raised bed.
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