This file contains an enormous list of materials, from alfalfa hay and apples to wood ash and wool, and their respective contents of nitrogen (N), phosphorus (P), and potassium (K). Since I am really interested in so-called "sustainable gardening" and the use of innovative means and ideas, this list gives me an idea of how various inputs to my garden will affect the plants. I've been using this since 2010 or 2011.
The contents of this file are the work of "The Garden Guy" (a.k.a. Ron Cusano), according to the mirror. I couldn't find any copyright information.
I created this metadata on February 18, 2012 and last modified it on August 23, 2013.
1. This is the original source of my file, though it is in a different format.
2. "Sustainable gardening" isn't really sustainable, like anything else in this fallen world, but I do like to learn about low-cost, low-input, low-labor methods, even if I disagree with the philosophy behind the movement.