Using this method, propagating around a 7x7 with a sprinkler, I was able to grow wheat from 1/1/1 to 10/10/10 in maybe 6 or 7 minutes. Glowstone (tier 3) took around 22 minutes. (I'm using Regrowth settings - no weeds, difficulty 2, planted on Garden Soil.) Definitely the fastest method I've...