. Bulletin of the Department of Agriculture. Agriculture; Agriculture. TILLAGE AND ROTATION EXPERIMENTS AT NEPHI, UTAH. 19 Table VII.—Annual and average yields of winter wheat on cultivated and uncul- tivated/allow at the Nephi substation, for the years 1910 to 1913, inclusive. Treatment. Yield per acre of grain (bushels). 1910 1911 1912 1913 Average. Fallow cultivated 13 14 29 18 21 15 5 5 17 13 Cultivation of Spring-Plowed Fallow. In the spring of 1912 tests similar to the ones last discussed were begun on spring-plowed fallow. Both plats produced winter wheat /909 /9/2 AVE/adGF. Fig. 9
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. TILLAGE AND ROTATION EXPERIMENTS AT NEPHI, UTAH. 19 Table VII.—Annual and average yields of winter wheat on cultivated and uncul- tivated/allow at the Nephi substation, for the years 1910 to 1913, inclusive. Treatment. Yield per acre of grain (bushels). 1910 1911 1912 1913 Average. Fallow cultivated 13 14 29 18 21 15 5 5 17 13 Cultivation of Spring-Plowed Fallow. In the spring of 1912 tests similar to the ones last discussed were begun on spring-plowed fallow. Both plats produced winter wheat /909 /9/2 AVE/adGF. Fig. 9.—Graphs showing the average percentage of moisture in the first 6 feet of soil at the beginning, in the middle, and at the end of the fallow season, as found in the summer-cultivation tests of fail- plowed fallow at the Nephi substation, 1909 to 1912, inclusive. in 1911 and were left in stubble during the winter. They were plowed uniformly as soon as possible the next spring. One was then culti- vated normally during the summer of 1912, while the other was not cultivated. There were practically no weeds or volunteer grain on. 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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