864 BOARD OP AGRICULTURE. [Jan., 



little or no help from the nitrogen. Indeed, Mr. Newton's case 

 is the only one I have met in which corn has responded profitably 

 to the largest ration of nitrogen. So rare and interesting a case 

 demanded further study. Accordingly Mr. Newton laid out a 

 new experiment in a more favorable place — the former was on the 

 slope, and the latter on the top of a hill, both being in the same 

 field — and on a larger scale, using two acres instead of one. 



The experiment of 1881 was on the schedule described above 

 (pages 346-8), in which the nitrogen groups differ somewhat from 

 those of former years. The results obtained in 1881, appear in 

 Table III. 



TABLE III. 



EFFECTS OF NITROGENOUS FERTILIZERS ON CORN. 



EXPERIMENT OF MR. W. C. NEWTON, DURHAM, CONN., 1881. 



SOIL. — Hill, land; Dark loam; subsoil moist ; weatseh, unfavorable. 



Fertilizers Per Acre. Shelled Corn Per Acre. 



buehels. 



No Manure, 12.5 



Nitrate of Soda, 150 pounds, 22.5 



Superphospate, 300 pounds, 13.8 



Muriate of Potash, 150 pounds, 15.0 



Nitrate of Soda, 150 pounds, + Superphosphate, 300 pounds, . . .23.8 

 Nitrate of Soda, 150 pounds, + Muriate of Potash, 150 pounds, 23.8 



Superphospate, 300 pounds, + Muriate of Potash, 150 pounds, 



(mixed minerals,) 13.8 



Mixed minerals, 450 pounds, + Nitrate of Soda, 150 pounds,. . .23.3 

 Mixed minerals, 450 pounds, + Nitrate of Soda, 300 pounds, . . .41.7 

 Mixed minerals, 450 pounds, + Nitrate of Soda, 450 pounds,. ..56.7 



Mixed minerals, 450 pounds, 16.3 



Mixed minerals, 450 pounds, + Sulphate of Ammonia, 112.5 



pounds, 28.5 



Mixed minerals, 450 pounds, + Sulphate of Ammonia, 225.0 



pounds, 42.5 



Mixed minesals, 450 pounds, + Sulphate of Ammonia, 337.5 



pounds, 48.3 



Nitrate of Soda, 450 pounds, 53.8 



Mixed minerals, 450 pounds, + Dried Blood, 225 pounds 28.8 



Mixed minerals, 450 pounds, + Dried Blood, 450 pounds, 33.8 



Mixed minerals, 450 pounds, + Dried Blood, 675 pounds 40.6 



Mixed minerals, 450 pounds, 20.6 



No manure, 13.8 



