77 



Summary of Weather Observations, Mat 23 to August 15, 1891 



*84 days. 



The season was unusually dry, and the yield was undoubtedly diminished 

 from this cause. 



69.79 per cent 



.102 " 



.132 " 



.206 " 

 23.82 " 



analysis of manure used. 



Moisture at 100° C, 



Phosphoric acid, 



Potassium oxide, 



Nitrogen, 



Insoluble matter, 

 This manure weighed 50|^ pounds per cubic foot and at the rate 

 used, therefore, would supply per acre: nitrogen, 66.6 pounds; 

 phosphoric acid, 33 pounds; and potash, 42.7 pounds. This appli- 

 cation furnishes rather more than twice the nitrogen and about one- 

 half the phosphoric acid and potash furnished by the " complete " 

 fertilizer, and it produces a better crop than the fertilizer. 



RESULTS OF THE ADDITION OF NITROGEN TO 



Nothing. 



Oats, bushels per acre, 3.33 

 Straw, pounds " 1413 



Value of net average increment, $8.18. 



Financial result, 4.18 gain. 



RESULTS OF THE ADDITION OF PHOSPHORIC ACID TO 



Nothing. 



Oats, bushels per acre, 7.61 



Straw, pounds " — 3 — 3 — 395 



Value of net average increment, $3.83. 



Financial result, 0.97 loss. 



—440 



Average 

 result. 



-210 



