New York AGRICULTURAL EXPERIMENT STATION. 329 
phate alone or in combination with either nitrate of soda or 
muriate of potash or both, all in liberal quantities, did not give 
as good a crop as a soil made of sod composted with one-fourth 
its bulk of stable manure; but where a very heavy application 
of raw bone meal was made the yield was 7 per ct. greater than 
with the compost. The acid phosphate, muriate of potash and 
nitrate of soda combination gave a yield nearly equal to that on 
the compost, but with the other applications the yield was much 
reduced. . 
In the next experiment the black loam soil was mixed with an 
equal bulk of stable manure, and gave a considerably better crop 
than was secured from the use of raw bone meal alone or com- 
bined with either nitrate of soda or muriate of potash, but a 
poorer yield than that from the three fertilizers combined. 
Nine different fertilizers or fertilizer combinations were 
tested in the next experiment. Manure made up half the bulk 
of one soil, five-eighths that of another. In the first crop. both 
manured soils gave poorer yields than any other fertilizer or 
combination; in the second crop, on the unchanged soils, the 
pots containing one-half manure ranked seventh in yield, those 
containing five-eighths manure, first. The comparatively slight 
differences in the higher yields of the previously mentioned ex- 
periments might be attributed to differences in the kind of plant- 
food or to variations in vigor of the plants. Some other ex- 
planation must be given for the great deficiency in yield on the 
manure pots in the first crop in this test, especially since one of 
the manured soils without more plant-food gave the largest 
yield in the second crop. The extremely low yields with manure 
in the first crop parallel some of our results showing deleterious 
effect when excessive quantities of manure were used, with 
superior results from less manure. 
For immediate results nitrate of soda did better than dried 
blood, but where a second crop was grown without repeating the 
application of the fertilizers the dried blood gave the better 
results. 
