33G Report of the Horticultuual 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 lbs. 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 following statement: 



Table III. — Combinations of Commercial Fertilizers in which Nitro- 

 gen WAS Applied. 



Amonnt per acre 



/ *~~ ^ 



Sulphate Sulphate 



of Acid Dried Nitrate of of 



Series. potash. phosphate blood. soda. ammonia. 



Lbs. Lbs. Lbs. Lbs. Lbs. 



Dried blood 400 GOO 1000 



Nitrate of soda 400 600 600 



Dried blood and nitrate of 



soda 400 600 850 100 



Sulphate of ammonia 400 600 480 



' 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. 



Gommercial fertilizers and stable manure combined or used sepa- 

 rately. — Each 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 



