Moss - Growing moss in the vegetable garden as a weed inhibitor. Could this be a problem?

by Jay
(Stanford, California, USA)

I am experimenting with perennial and annual ecosystem gardening using moss as a weed inhibitor. The idea is that I grow clover anywhere that is far enough away from plants to fix nitrogen, and then close to the plants I grow moss as moss has little to no root structure it shouldn't prevent the vegetables from growing big and strong, and it seems that the moss is easy to remove as it doesn't seem to grow very strong in this sunny location and it comes out in mats.

So my question is weather or not there would be any problem in regards to the plants and especially the vegetables. Could moss be poisonous, and could water passing through the moss leach into the root systems of the plants and put a chemical in the vegetables that would be bad for us to eat?

In other words is there any reason not to experiment with using moss as a weed inhibitor in my garden?