Fertilizers with Timothy on Dunkirk Clay Loam, 283 



nitrate of soda in connection with 320 pounds of acid phosphate 

 brought better results than either of the above combinations. Perhaps 

 more economical results would have been obtained if only 160 pounds 

 of acid phosphate had been used with 160 pounds of nitrate of soda in 

 Plat 721. It would seem that muriate of potash increases the total 

 yield of hay. The alsike clover was especially abundant all over 

 Plats 713 and 718 which received muriate of potash without receiving 

 nitrate of soda. The plats which received nitrate of soda in addition 

 to muriate of potash, either with or without acid phosphate, con- 



y^m 











xtitf^ft-.- '^ ; 



■'^ 



- ;-"-^ '.'V'i»".'r"j 



714 

 No treatment. 

 2400 lbs. hay per a. 



713 

 80 lbs. Muriate Potash. 

 3190 lbs. hay per a. 



712 

 320 lbs. Acid Phosphat*. 

 2680 lbs. hay per a. 



^IG. 17. — The growth u^^jn these plats was rather short and of fine texture. Considerable 



alsike clover grew on plat 713. 



tained much less alsike clover, and this chiefly at the north end of the 

 plats, while those plats which did not receive muriate of potash con- 

 tained practically no alsike clover except plats which received stable 

 manure. The alsike clover on other than the manure plats was 

 originally in the soil, since it is known that the timothy seed sown 

 was pure. The residual effect of the stable manure in increasing the 

 yield of hay was quite marked, the apparent increase being 1.3 tons 

 per acre where 10 tons of stable manure had been applied in the fall 

 of 1903, and over 2 tons per acre where 20 tons of stable manure had 

 been applied per acre. This increase in yield, however, was not due 



