whether the fertilizers should prove in any degree useful, ^°°'^ ^°^ 

 another plat was added to which manure alone was applied. "*^ 

 A number of different garden crops were grown, including ^^^ 

 spinach, lettuce, table beets, tomatoes, and cabbage ; and, 

 as a second crop, turnips. 



Spinach gave by far the best results with Sninach 



Nitrate of Soda. On sulphate of ammonia 

 plats it was almost an absolute failure, many plants dying 

 soon after germination and most of the others becoming 

 yellow and sickly. Sulphate of potash gave somewhat 

 better returns than did the muriate. Very similar results 

 were obtained with beets. Most of the plants on the 

 sulphate of ammonia plats became weak and sickly and 

 many died ; but the few that survived vintil about July 

 gradually recovered their vigor and grew very rapidly. 

 The results with tomatoes were also in part similar. 

 Sulphate of potash gave somewhat better returns than the 

 muriate, and Nitrate of Soda gave the best yield of any of the 

 sources of Nitrogen ; but the differences were far less pro- 

 nounced than in the cases of spinach and beets. Contrary 

 to the results in these cases, however, the sulphate of 

 ammonia did not appear to have injuriously affected the 

 crop. This is thought to be 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. By this time 

 the injurious compounds formed by the sulphate of ammonia 

 have been washed away bv rain or destroyed by further 

 chemical changes. The crops that were injured by the 

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

 make most of their growth before the season is far advanced. 



Lettuce yielded better on barnyard manure alone than 

 on the plats to which fertilizers were also applied. The 

 result is exactly in line with the results obtained at the 

 New York State Station, an account of which appeared in 

 an earlier bulletin of this series,' where it was found that 

 "after the soil has received a heavv application of stable 

 manure, anv further addition of chemical fertilizers is only 

 thrown away." Here, as before, sulphate of ammonia was 

 found to be highly injurious, especially when used with 

 muriate of potash. 



Cabbage appeared to be somewhat benefited bv the 

 addition of fertilizers to barnvard manure. The difference 



