In a couple of past blog's http://blog.calciumproducts.com/posts/im-not-a-farmer-but-i-play-one-on-tv.cfm  http://blog.calciumproducts.com/posts/calcium-products-reading-list.cfm I mentioned I was reading The Albrect Papers.

I am happy to say I am finished. It's not that it is a bad book, it has tons of useful information in it. It just really reads like a technical journal article. I really do not enjoy reading journal articles.

By short comings aside, one of the more interesting aspects of this book are the experiments that Dr. Albrect did over 50 years ago. Many of his finding are now just being rediscovered.

Dr. Albrect had an experiment that showed what animals eat makes a very big difference in the quality of manure for fertilizer. Just today Glen Howell highlighted an experiment http://blog.calciumproducts.com/posts/differences-in-organic-manure.cfm that USDA-ARS conducted showing that is also the case.

Reading the Albrecht papers was very forward thinking for its time. I felt like I was reading the future written 50 years ago. If you want to unlock the secrets of soil fertility and know what soil prinicples will finally be validated in the near future, pick up a copy of Soil Fertility and Animal Heath, by William A. Albrecht.