Ive been told that the AerWay concept since 1988 changes to the machine includes holding water in the hole which it makes so that the freezing of water will fracture the soil. Does that really work?
At first blush, it sounds reasonable enough if you farm far enough north and if the rain would happen to fill the hole with water and cold enough temperatures would follow soon enough so that the freezing would take place. Theres plenty of ifs so far but there is one other problem if all the other variables worked in harmony. The shape of the hole made is tapered from bottom to top so that the freezing of the water would only cause the ice to rise up above the top of the hole. The top of the hole would have to be smaller than the bottom for the ice to be trapped in the hole. Only then could the ice actually exert sidewall pressure sufficient to fracture the hole walls.
Related Questions
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