| http://www.w3.org/ns/prov#value | - Seems OK., but there are many soil types within the profile for this system,and what if the farm is well and truly established,and, thus a limitation in getting pipes below ground because of tree crop growth,and matters vineyard in the Murray River area of Australia!?The reason a rising water table and salt exuding to the soil is a major problem,is the potential for a sort of cave in and the remai
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