1906.] PUBLIC DOCUMENT— No. 33. 4l 



The relative standing of tlie potash .salts for the i)resent 

 year is : — 



For the early crops : — 



Per Cent. 



Sulfate of potash, 96.52 



IMuriale of potasli, 100. (Ki 



For the late crops : — 



Per Ceut. 



Sulfate of potasli, 92.08 



Muriate of potasli, 100.00 



Combining the relative standing of the potash salts for 

 1905 with the figures indicating relative standing for tlie 

 fourteen previous years, the relative standing is : — 



For the eai-ly crops : — 



Per Cent. 



Sulfate of potash, . . . ' . . . . 100.00 

 Muriate of potash, 94.66 



For the late crops : — 



Per Cent. 



Sulfate of potash. . . . . . . .97.90 



Muriate of potash, 100.00 



The results of the experiments for this year will not be 

 reported in detail. The following points are worthy of 

 mention : — 



1. Nitrate of soda appears to be the best source of nitrogen 

 for asparagus, taljle beets, cal)bages and squashes. 



2. Dried blood as the source of nitrooen has 2:iven the 

 largest crops in the case of strawberries, peas, tomatoes and 

 celery. 



3. Sulfate of potash as the source of potash seems to be 

 superior for asparagus, peas, beets and cabbages. 



4. Muriate of potash gives results superior to those ob- 

 tained with the sulfate for rhubarb, strawberries, squashes, 

 tomatoes and celery. 



5. Sulfate of ammonia for })ractically all crops appears to 

 have been the poorest material used as a source of nitrogen. 



