Posted: 03/01/2014 at 08:53
If it's just the veg garden that you want to keep organic and you are willing to use weedkiller in other parts of the garden then you can do so. Glyphosate only affects the leaves it touches. They claim it is inactivated in soil, but whether that is true or not, if you aren't using it in the veg garden it won't be in that soil anyway.
But I would do as fidgetbones says, spray once when the weather is warmer (it doesn't work properly in winter) to start clean then, as Verdun says, keep hoeing.