Fertilizers with Timothy on Dunkirk Clay Loam. 285 



Summary. 



1. Oats and timothy were sowti on Dunkirk clay loam which the 

 previous fall had been treated with commercial fertilizers, stable 

 manure and lime. In the spring following the year in which the 

 oats were harvested, commercial fertilizers were applied, but stable 

 manure and lime were not again applied. The primary purpose 

 was to study the influence of fertilizers upon meadows, the introduc- 

 tion of oats being merely to make the trial conform to farm practice. 



720 

 No treatment. 

 2470 lbs. hay per a. 



719 

 160 lbs. Nitrate Soda. 

 80 lbs. Muriate Potash. 

 4280 lbs. hay per a. 



718 

 320 lbs. Acid Phosphate. 

 80 lbs. Muriate of Potash. 

 2800 lbs. per a. 



Fig. 19. — Increased yield is not the only factor in the economy of applying fertilizers. Plat 

 718 shows an increase in yield, but this does not balance the cost by fifty cents. 



2. The average yield of oats on eight plats not fertilized was at the 

 rate of 53.8 bushels per acre; upon 14 fertilized plats, 59.6 bushels. 

 The apparent increase in yield was most marked where a complete 

 fertilizer high in nitrogen and phosphoric acid was used and where 

 twenty tons of stable manure were applied per acre. The inference 

 is that both nitrogen and phosphoric acid had an influence in increas- 

 ing the yield of oats. 



3. Upon timothy the influence of nitrogen was most marked as 

 shown both in the growing crops and in the yield of hay. The 

 results are striking and unmistakable. The average yield of hay 



