. Bulletin. eld that the comparison of the nitrogen, phosphoric acid andpotash is comparatively little affected. The seed, eight-rowed yellowflint corn, was planted May 22d ; the crop was stooked Sept. 25th,and husked Oct. 16th. The stooks on plots 4, 5, 6, 7, and 8 werein part blown down by a storm and were not as dry as in other parts 31 of the field. All through the season it was evident that the growLlwas far more benefited by potash than by any other element. RESULTS OF MEASUREMENTS. of FERTZEEUSED Plot Nothing, Nitrate of soda,Dis. bone-black. Nothing, Mur. of potash,Nit. &
. Bulletin. eld that the comparison of the nitrogen, phosphoric acid andpotash is comparatively little affected. The seed, eight-rowed yellowflint corn, was planted May 22d ; the crop was stooked Sept. 25th,and husked Oct. 16th. The stooks on plots 4, 5, 6, 7, and 8 werein part blown down by a storm and were not as dry as in other parts 31 of the field. All through the season it was evident that the growLlwas far more benefited by potash than by any other element. RESULTS OF MEASUREMENTS. of FERTZEEUSED Plot Nothing, Nitrate of soda,Dis. bone-black. Nothing, Mur. of potash,Nit. & fepotsh. Nothing, Bne-bk & potshNit. &pothLand plaster, .. Notliing, Barn-yd manure Lime, Nothing, Average of Measurements. July 4 July 14 July 25 Aug. 4 Aug. 14 Aug. 25 Sept. 4 Sept. 14 23. 24. 22. 25. 39.] 31. 43. 34. 52. 54. 89. These figures make evident in a striking manner the beneficialeffects of potash. They do not indicate any progressive falling offwhere nitrate of soda was used with the advance of the season. ANALYSIS OF Moisture at 100* C,Potassium oxide,Phosphoric acid,Nitrogen,Insoluble matter, MANURE USED. per cent. .327 .184 .345 The 32 cubic feet used weighed 1121 pounds and furnished at therate, per acre : nitrogen, pounds ; phosphoric acid, pounds,and potash, pounds. The phosphoric acid and potash are innearly the same proportion as in complete fertilizer and but littleless in amount, while there is nearly three times as much nitrogen asin the fertilizer ; and yet the total crop, as well as the apparentincrease where manure was used was less than with the completefertilizer; les
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