so, if i have huge stumps and quite a bit of debris, i wouldnt want to dig say a 4 foot deep trench and just dump it all in. will the material be too far down to do any good ?
all of the wood debris in my hugel beds in my forest garden are 3-4 ft deep. this will encourage deep roots in the summer when it is very dry and hot here.
Actually, this just made me think of a question: most of our rotting wood is fir (Douglas and Grand) so I'm wondering if there's a depth at which the toxicity of the stuff won't matter so much, but close enough to the surface to perform water-retaining duty. ?