1900.] PUBLIC DOCUMENT — No. 33. 37 



2, 96.6 pounds; plot 3, 155.1 pounds; plot 4, 172.3 

 pounds; plot 5, 108.1 pounds; plot 6, 103.3 pounds. 



The average yields in pounds produced by the ditiferent 

 fertilizers* were : — 



Manure alone (plot 0), 



Average of manure and muriate of potash (plots 1, 2 and 3), 

 Average of manure and sulfate of potash (plots, 4, 5 and 6), 

 Average of manure and sulfate of ammonia (plots 1 and 4) , 

 Average of manure and nitrate of soda (plots 2 and 5) , . 

 Average of manure and dried blood (plots 3 and 6), 



126.6 

 115.4- 

 128.8 

 161.9 

 102.3 

 129.2 



It will be noticed that but two of the combinations of fer- 

 tilizers used with the manure excel the manure alone, viz., 

 sulfate of ammonia and sulfate of potash, and dried blood 

 and muriate of potash. Nitrate of soda, which we have found 

 the best source of nitrogen for most crops, makes the poor- 

 est showing. Between the muriate and sulfate of potash 

 there seems to be no clearly defined difference. These re- 

 sults were doubtless in part determined by the degree of 

 winter injury. 



Celery, — This crop followed the strawberries without 

 extra manurins;. The share of the stable manure belon^inor 

 to the fruiting strawberry area was, however, applied when 

 the strawberry vines were turned in. The yields of the 

 several plots in pounds were as follows : plot 0, 720.8 ; plot 

 1, 250 ; plot 2, 550 ; plot 3, 510 ; plot 4, 190 ; plot 5, 585 ; 

 plot 6, 550. 



The average yields in pounds produced by the different 

 fertilizers were : — 



Manure alone, ....... 



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

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

 Manure and sulfate of ammonia (plots 1 and 4), 

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

 Manure and dried blood (plots 3 and 6), 



720.8 

 436.7 

 441.7 

 220.0 

 567.5 

 530.0 



* To enable the reader to better make comparisons, the plots are characterized as 

 " manure and muriate of potash," " manure and sulfate of potash," etc. It should 

 be remembered that dissolved bone-black was applied to all except plot 0, and that 

 every plot except plot received material supplying both nitrogen and potash as 

 well as phosphoric acid in addition to the manure. For the full list of fertilizers 

 applied to each plot, see page 35. 



