A few more pictures.
For whatever reason it doesn't seem that the manure is providing much if any heat. I don't know if it's the manure or the cold temperatures we've had. A few nights ago it was 16 degrees F. Most of last week the soil temp was a steady 40 degrees. I bought a little electric space heater and stuck it in the bed, and I bought an insulated 6x25 foot blanket that concrete workers use. I cover it at night with the blanket and foam pieces. I have a row of iceberg lettuce nicely "up" after about a week. I am hitting daytime temps of 85 degrees and soil temp of 60 right now.
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