Author's notes:In growing vegetables for paying customers, one of my biggest concerns is not having enough items to fill the biweekly boxes.  My response to this fear is that the fertility of the soil often produces an abundance that greatly exceeds expectations.  This can lead to another anxiety for CSA members as they receive a heaping box full of fresh food, not quite sure what to do with it all.  It is a very tricky thing to figure out just how much is…