Publisher: Harcourt, Brace. (1929)
Publisher: Devon-Adair Company, Inc. (1957)
Publisher: Island Press; 1st edition (December 1, 1987)
Summary Tree Crops: A Permanent Agriculture by J. Russell Smith is the classic work on tree crops. This is a highly readable blueprint for the development of high-yield tree crops that proves that vast, untapped food sources can be harvested from common species of North American trees - without tilling.
From Tree Crops:
[Tilling] removes the basis of civilization and of life itself. It is far worse than burning a city. A burned city can be rebuilt. A field that is washed away is gone for ages. Hence the Old World saying, "After the man the desert."
"You may not have realised, but this 1929 classic book was a major influence on the development of the Permaculture concept in the 1970’s. It is a very hard to find a copy of this book, but it is worth your effort. Or there are a number of websites from which you can download the entire book." - David Holmgren