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| I think that's a good summary wcfields, but I wanted to add that Mole Plowing is often used in England perpendicular to an existing tile drainage system on 40-50' centers. The moles were often around 24" deep and around 10' apart within fields with a moist clay subsoil.
Lots of more recently tiled fields in England have gravel backfill, so the moles would run through the gravel to dump the water into the tiles below the gravel. Mole plowing is well researched to improve drainage speed, but without a good field drainage system I don't think mole drainage would benefit much.
Edited to add photo of backfilling behind tiling machine. I found the image on the internet, but it shows the process.
Edited by Phil N 2/11/2024 20:11
 (BACKFILLING (full).jpg)
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 BACKFILLING (full).jpg (71KB - 83 downloads)
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Mole plow drainage?
