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Show WEEDS REDUCE CROP YIELDS Interesting and Instructive Experiment Experi-ment Conducted at North Dakota Agricultural College. CBy W. C rALMBR, AtHciuiiural Ed I to. ' Horth tlahaia Afrtcaltural Coll.) That Weeds reduce yields la evident evi-dent To get som Idea of bow much weeds might reduce yields I selected a field that waa weedy with pigeon graaa, the wheat waa ripe. 1 mesa- . ured out a square yard at aeveral placea, pulled tbe weeda carefully so i as not to disturb th wheat Th I weight of the weeds without roots i waa aa follows: 91 ounces, SI ounces, C4 ouncea. It ounces, and SO ounces. - makln gaa average of SS ounces per ' square yard. Th first on la quit a , tittles above the average. If that la left out th average will be SO ounce j to th square yard, or three and three- ( fourths pounds. This would msk i 14.610 pounds to the acre. A ssro- I pi of weeds waa dried and gave 21 I per cent dry weight, or 1,049 pounds of dry matter, one and one-half tone. 1 or enough to reduce th yield of j wheat 25 bushels, provided wheat could bav mad aa good us of th , molstar and plant food. On thing la certain, and that la that tb grow- 1 Ing of tbes weed used up 2.100 tons I of water, th equivalent of II Inches 1 of rainfall and that la rain that waa 1 actually In tbe soil where the wheat 1 could bav secured It It le an ex- 1 pensive thing to bav on th farm, j |