We recently moved to a new house and have been working on setting up a new garden, which is most of the way ready. I am trying wide row (a total of 14 3'x12' beds)gardening. The beds have been heavily amended to help with the pure clay soil, dug down, and mounded into shape. I am struggling a bit with what to put down in the 3' walkways. I can get free mulch from the solid waste district, but have heard that it robs nitrogen. I recently saw somebody who put down artificial turf between the rows. Do you see any issues with this? I worry a bit about bad stuff leaching into the garden, which we will eventually eat. Thoughts???

Steve