46 



EXPERIMENT STATION. 



[Jan. 



Each time that the land has been seeded it has been cut twice annually for 

 two 3'ears. The sod has then been broken in the fall for the corn crop of the 

 followmg year. The years Avhen the field has been in mowing are 1898 

 and 1899, 1901 and 1902, and 1905 and 1906. 



Manure has been apijlied to plots 1 and 3 every year, at the rate of 6 

 cords per aci-e, with the following exceptions. No manure was applied 

 in 1897, 1902 and 1905, and in 1898 the amount applied was at the rate 

 of 4 cords per acre. The reason for the omission of manure in the years 

 mentioned and for the smaller amount in 1898 was that experience indi- 

 cated that its application would cause the grass and clover to lodge badl}'. 



Manure has been applied to plots 2 and 4 as follows : in 1891 and 1892, 

 at the rate of 3 cords per acre; in 1898, at the rate of 2 cords per acre; 

 while in 1897, 1902 and 1905 no manure was ajiplied. In all other years 

 the api)lication has been at the rate of 4 cords per acre. Potash has been 

 applied to plots 2 and 4 at tlie rate of 160 pounds per acre of high-grade 

 sulfate annually, except in the years when no manure was api^lied. In 

 these years the potash also was withheld. 



The entire field was limed in 1900 at the rate of 1 ton per 

 acre. The manure used has been from Aveli-fed milch cows, 

 and has usually weighed about 3 tons per cord. Both manure 

 and fertilizer were applied broadcast after plowing, and har- 

 rowed in. 



The following tables show the rates of yield on the several 

 plots and the averages under the two systems of manuring : — 



Yields per Acre, 1907. 



Average Yields per Acre. 



Plots. 



Sound Corn 

 (Bushels). 



Soft Corn 

 (Bushels) . 



Stover 

 (Pounds). 



Plots 1 and 3 (manure alone) , 

 Plots 2 and 4 (manure and potash), 



64.88 

 61.33 



6.00 

 8.02 



7,230 

 7,314 



It will be noticed that the yield of sound corn is somewhat 

 larger on the heavier application of manure alone than on the 



