I'm considering putting in some wood fence posts (I have lots of trees that need thinning and need some fence). I don't want to treat them (trying to be super organic), but I do want them to last a long time. It seems that the primary problem with fence posts is that they rot at the soil line. The combination of moisture, soil microbes and air rot the post. I've heard that cement is often not a good choice for a wood post because it holds moisture and, some say, makes the post rot even faster. I keep thinking that there must be a simple way to do this .... The first thing that comes to mind is to somehow heep the water away from where the post contacts the soil. A teeny tiny metal roof seems crazy. Cement? What if I put down a bunch of ag-lime? It seems that the alkaline around the post would be too high for nearly all of the microbials, while any runoff would be beneficial for my generally acidic soil. Are these ideas too goofy? Anybody have other ideas?