. Bulletin of the Department of Agriculture. Agriculture; Agriculture. MANGANESE UNDEE ACID AND NEUTEAL SOIL CONDITIONS. 9 Table ^'II.—Effect of manganese sulphate on the yields of wheat, rye, timothy, beans, corn, coivpeas, and potatoes in 1915. Area and treatment. Wheat. Rye. Timo- thy. Beans. Corn. Cow- peas. Pods. Vines. Stover. Ears. Per square rod: Untreated Treated with Lhs. 11 14 1,760 2,240 LU. 18 26 2,880 4,160 Lbs. 41 45 6,560 7,200 Lbs. 25 27 4,000 4,320 Lbs. 31 34 4,960 5,440 Lbs. 48 54 7,680 8,640 Lbs. 30 33 Bush. 68 75 Lbs. 31 40 4,960 6,400 Lbs. 19 19 Bush. Per ac
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. MANGANESE UNDEE ACID AND NEUTEAL SOIL CONDITIONS. 9 Table ^'II.—Effect of manganese sulphate on the yields of wheat, rye, timothy, beans, corn, coivpeas, and potatoes in 1915. Area and treatment. Wheat. Rye. Timo- thy. Beans. Corn. Cow- peas. Pods. Vines. Stover. Ears. Per square rod: Untreated Treated with Lhs. 11 14 1,760 2,240 LU. 18 26 2,880 4,160 Lbs. 41 45 6,560 7,200 Lbs. 25 27 4,000 4,320 Lbs. 31 34 4,960 5,440 Lbs. 48 54 7,680 8,640 Lbs. 30 33 Bush. 68 75 Lbs. 31 40 4,960 6,400 Lbs. 19 19 Bush. Per acre (CRlculated): Untreated Treated with MnSCi 40 40 The effect of manganese on all the crops m 1915 was somewhat similar to its effect m 1914. Considerable increases were produced. Fig. 1.—Rye on an untreated plat. with each crojp except potatoes. In this case the yield was the same in the check plat and manganese plat. Again the largest in- crease was secured with rye. OXIDATIVE POWER OF PLATS WITH AND WITHOUT MANGANESE UNDER NEUTRAL CONDITIONS. In July, 1015, samples of soil were taken from each plat, as previ- ously described for the work done in 1912, in order to determine the oxidizing power. The relative oxidation in the check plats and inungiincse plats is given in Tabl(5 VIII. Tlie chec^k plat in each case is taken as 100 and compared with the manganese plat growing the same Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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