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Show Useful Bacteria I N THEIR relation to man bacteria may be 1 sil.l to be both harmful and useful. .ur attention has br-i-n repeatedly called to the hostile ones-, but almost nothing has been said about the ltnitieii.se good we derive from others. In terimi e.f dollars and cni.i it would be practically Impe.vlMo to esllin.it. the value of g.-riil life to the agricultural world. Soil t. ra are larg ly ' responsible for the Increased fertility which result:, from r sling land, or what Is known as fallow cultivation. The complex organic sub-t.nn-e-found In the si. II. together with the green r...s and the stable rnanuic which arc plowed und. r. w. uld all remain, for the must part, unchancej i(p, ,,f m, u-.,. pl.nil food, wire- It not for the (p composing aellori of . baiterli. When the soil Is supplied with the requisite moisture and the proper temperature tempera-ture the millions ef germs which make this th'-lr home utlll.e ihe complex sulsti-.r.res present for fond and Incidentally chance the composition of this manure and other material mate-rial so that It In conn s available for tin- use of plants. In this way thousand., of pnurnll e.f nllroge-n nr.- returned to the fl.-lda every se is'-n which, without the aid e t Ihe tod organisms, would i.inairi locked up forever o far as crowing r.q.s nie cone, rn.-.l Walter C. S.ick.-tt, Colorado Asm- ultural Colli Col-li ge. |