Mike Schroer wrote:I recently saw an interesting presentation by this guy not long ago. robertkourik.com He has a book on understanding root systems. I haven't seen the book but a lot of his presentation was from his book. He has collected root studies done a long time ago by universities. He has some different views on what is typically done on mulching trees. You might want to check out his website and see if the book is worth buying.
Dennis Bangham wrote: How far out from the tree should I go with compost? I have a lot so 3 or 4 feet is not a big deal. I also have access to all the wood chips I can desire. Don't want to waste compost since it can be used elsewhere.
Also I seem to recall that burying tree roots under too much soil can suffocate the tree. Is this true? Should I stop adding this compost and wood chip layers after a couple years or will the roots grow upward to find the air they need?