`  ::Actually, the study did not intend to control for what we might call ``conventional organic`` techniques. To do this would require, for example, eschewing the rituals in favor of simply including the same kind of compost. so we can't say that BD has the highest diversity without rather awkward qualifications. We can say that BD has a comparably high density compared to other techniques, however. I'll try to tweak and we'll see if we can't come to a good consensus.   `