336 ReporT oF THR HorTICULTURAL DEPARTMENT OF THE 
Excepting those which were left untreated for checks, the 
boxes were each given potash, phosphoric acid and nitrogen in 
the form of commercial fertilizers. The potash was always 
added in the form of the sulphate at the rate of 400 lbs. per acre; 
the phosphoric acid in the form of acid phosphate at the rate of 
600 Ibs. per acre; the nitrogen in dried blood and nitrate of soda 
either combined or separately, or in sulphate of ammonia. The 
different combinations of commercial fertilizers in which nitro- 
gen was applied are shown in the folowing statement: 
TABLE III.—CoOMBINATIONS OF COMMERCIAL FERTILIZERS IN WHICH NITRO- 
GEN WAS APPLIED, 
Amount per acre 






“Sulphate mal ie Sulphate | 
of Acid Dried Nitrate of of 
Series. potash. phosphate blood. soda. ammonia. 
Lbs. Lbs. Lbs. Lbs. Lbs. 
DTCC. W100G <a iin os ke cohen oe AOD 600 1000 0 0 
Nitrate of sodayn.. . usd... 400 600 0 600 0 
Dried blood and nitrate of 
SOT o cavolehe Ate oiecAbee ae ie 400 600 850 100 0 
Sulphate of ammonia..... 400 600 0 0 480 
The actual potash thus applied was in each case 204+ lbs. 
per acre; of actual phosphoric acid 98+ lbs.; of nitrogen in the 
dried blood series 99+ lbs.; in the nitrate of soda series 91+ lbs.; 
in the dried blood and nitrate of soda series 99+ lbs. and in the 
sulphate of ammonia series 100+ lbs. It is clear that the supply 
of potash and phosphoric acid was in each case the same and 
of nitrogen approximately the same, being a little less in the 
nitrate of soda series than in the others. Any marked varia- 
tions in the results with the different series may therefore sig- 
nify a difference in the action of the nitrogenous fertilizers 
which are to be compared. 
Commercial fertilizers and stable manure combined or used sepa- 
rately—KEach series of the nitrogenous fertilizers mentioned 
above was used alone and also in combination with different 
amounts of stable manure, both on the clay loam and on the 
sandy loam. In some of the check boxes stable manure was 
also tried without any commercial fertilizers on sandy loam and 
