I've done one Mel's Mix bed, one double dug bed (thanks, DH! <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1">), and one lasagna bed so far in my current house. The double-dug bed was, far and away, the most productive. It is a lot of work at first, but wow, the results are great. I'm not sure whether I did the lasagna bed incorrectly, but the first year, my results were poor. The second year, with the addition of a little finished compost, the results were great. I think my compost materials in the bed just didn't compost enough over the winter the first year (it was a very dry winter here), and too many nutrients were still bound up in the soil in the spring.<br><br>
Anyway, I'd do a lasagna bed again if I planned far enough in advance. One ho hum year, followed by good years in the same bed is OK with me. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1">