Hi, a few thoughts about the class project - I second Sharon's thoughts about sustainability. I think that is the big issue in any community garden. On all levels, from the soil up to longevity of gardeners and garden mission. Organic can take on a much larger meaning. Deborah - I would be careful with some of your science, I do study soils. And everyone needs to remember that the use of the term 'chemical' to refer to synthetic is misguided. There are situations in which a synthetic solution might be the best answer, which is why IPM has become so successful. Another reminder - materials defined as organic can be just as dangerous, if not more so, than synthetic materials.
best to all, Lisa in Mpls.