http://www.durgan.org/URL/?GUPAA 1 June 2010 Conserving moisture in potato patch by mulching.
After an appropriate heavy rainfall, moisture is being conserved by heavily mulching the potato patch. The patch was previously hilled to a depth of about six inches above the seed potato. There should be enough moisture retained to almost complete the potato growth, but there will still be some more rainfall, throughout the growing season. This is the first time that I have tried mulching potatoes. The mulch is bedding wood chips, which I believe is of spruce tree source.