Fertilizers with Timothy on Dunkirk Clay Loam. 277 



management had been such as to reduce somewhat, although not 

 seriously, its crop producing power. It is well adapted to the growth 

 of timothy; fairly well adapted to the production of wheat, when 

 properly fertilized; and is less valuable for the production of maize 

 and potatoes. A sample was taken from each of the four corners 

 of the tract under consideration and analyzed by Dr. J. A. Bizzell 

 under the direction of Professor George W. Cavanaugh, with the 

 following results: 



Mineral Constituents in Dunkirk Clay Loam, Cornell University. 



Per Cent in Water Free Substance of Fine Earth: 



Phosphoric acid • 158 



Potash : . 293 



Lime 0.214 



Magnesium . 66 



The percentages of mineral constituents above given are such as 

 are usually found in soils of average fertility. The tract had been 

 in oats in 1903, the year previous to this experiment. 



In 1902 a crop of corn was taken from the land. The yield, while 

 average for this type of soil, was not equal to the average upon 

 types better adapted to corn. After the corn crop was taken from 

 the land some remnants of fertilizers were distributed upon the land 

 adjoining and the application extended about 20 feet upon the north 

 ends of these plats. The residual effect of this fertilizer was manifest 

 in the timothy, but as the application extended uniformly upon 

 all plats the relative yields were not affected. 



Experiment with Oats. 



This experiment was begun in the fall of 1903. The plan was to 

 seed to wheat and timothy that fall, with the primary object of 

 determining the influence of fertilizers upon the yield of timothy 

 hay, the introduction of wheat into the experiment being merely 

 in order to make it conform with usual farm practice. The plats 

 were subsequently plowed on August 23-25, and fitted on Sept. 13, 

 1903. The north half of each plat was limed with slaked lime on 

 Sept. 15, and the fertilizers applied as shown in the following table 

 on Sept. 16. The plats -were 226.5 feet long and 19.25 feet wide, 

 making an area of one-tenth acre. This width was chosen because 

 it is the distance covered by three courses of the drill. Between 

 each plat a space of two feet intervened, which was not seeded, but 

 kept cultivated. 



