72 



HATCH EXPERIMENT STATION. 



[Jan. 



The differences brought out by these averages are much 

 smaller than in the case of the spinach and beets, but are in 

 the same direction for ripe fruit; i.e., sulphate of potash 

 gives somewhat better returns than muriate, and nitrate of 

 soda gives the largest yield of any of the sources of nitrogen. 

 It is noteworthy that the sulphate of ammonia does not ap- 

 pear to have injuriously affected this crop. This is perhaps 

 due to the fact that the tomato is not set until about the first 

 of June, and makes most of its growth when the season is 

 well advanced. The crops shown to have been injured by 

 the sulphate of ammonia, spinach and beets, are sown early, 

 and make most of their growth before the season is far 

 advanced. 



Fotler'8 Drumhead Cabbage. — Two rows in each of the 

 original six plots and three in Plot were grown. The 

 seed was planted May 23, in hills, and later thinned to one 

 in each hill, those destroyed by maggots being replaced. 

 Owing to the unusually hot season, the crop was well grown 

 by September 1, and numerous heads were beginning to 

 crack. They were harvested as they matured, September 8 

 to November 5. The yield in pounds of heads, practically 

 all well filled and hard, was as follows : Plot 0, 729 ; Plot 

 1, 720; Plot 2, 780; Plot 3, 710; Plot 4, 755; Plot 5, 

 744; and Plot 6, 651. 



The average yields in pounds per plot were as follows : — 



Manure alone (Plot 0, corrected) , 624.9 



Manure and muriate of potash (plots 1, 2 and 3), . . 736.7 



Manure and sulphate of potash (plots 4, 5 and 6), . . 716.7 



Manure and sulphate of ammonia (plots 1 and 4), . . 737.5 



Manure and nitrate of soda (plots 2 and 5) , . . . 762.0 



Manure and dried blood (plots 3 and 6) , . . . 680.5 



