NEw YorRK AGRICULTURAL EXPERIMENT STATION. BT 
results were similar, though less marked, for the muriate in 
combinations, when a second crop was grown on the same plats 
without additional fertilizer; but the injurious effect of the 
muriate alone had worn off, apparently, for the yield with it was 
greater than on the check plats. 
Nitrate of soda with both muriate of potash-and dissolved 
bone black appeared beneficial, instead of injurious as when 
combined with muriate alone. 
In this connection the results of Brooks and Thomson’s!’ field 
experiments with onions are of interest. They found that lim- 
ing the soil or the free use of dissolved bone black overcame the 
unfavorable effects from the continued use of muriate of potash 
alone or the more unfavorable results when it is used with 
nitrate of soda. The presence of sulphate of lime in the dis- 
solved bone black probably accounts for the corrective iniuence 
of the latter. 
Experiments at this Station™ from 1895 to 1898 devoted prin- 
cipally to the merits of different soil mixtures for forcing lettuce, 
were also planned to show the effects of some different fertil- 
izers. Ona soil containing 15.5 per ct. by weight (25 per ct. by 
bulk) of manure, nitrate of soda gave a slight increase in growth, 
but when the soil contained 33 1-3 per ct. of manure, the use of 
the nitrate made no better growth. 
Acid phosphate, 600 lbs. per acre, and sulphate of potash, 400 
Ibs., did not increase the crop on the 15.5 per ct. manure soil; 
but doubling these amounts of phosphoric acid and potash gave 
later maturing and slightly heavier heads of lettuce than the 
manure alone. The addition of 33 1-8 per ct. of manure to sandy 
loam soil resulted in poorer crops of lettuce than were grown on 
the same soil with commercial fertilizers. On clay loam the 
manure gave excellent crops better than the fertilizers without 
manure. The cumulative effect of fertilizers was not studied, 
the soils being renewed each year. 

Brooks, W. P., and Thomson, H. M. Mass. Hatch Sta. Ann. Rept. 
1891 :108-112. 
“Beach §. A. N. Y. Agrl. Exp. Sta. Bul. 146:151-179; also Ann Rept. 
-1898:461-491. bn Wek 
