1903.] 



PUBLIC DOCUMENT — No. 33. 



129 



grain this year. The crop, liowever, is not yet sufficiently 

 dried to shell ; and calculation, allowing 90 pounds of ears, 

 as weighed November 22, to a bushel, shows that the average 

 apparent yield is at the rate of 9.7 bushels per acre. The 

 actual yield of grain is believed to be under 4 bushels per 

 acre. The table shows the manuring of the several plots, 

 the rate of yield, and the gain or loss per acre compared 

 with the nothing plots : — 



Corn. —South Acre Soil Test, 1902. 



Fertilizer used. 



Nitrate of soda, 

 Dissolved bone-black, 

 Nothing, . 

 Muriate of potash. 

 Lime, 

 Nothing, . 

 Manure, . 



Nitrate of soda and dissolved 



bone-black. 

 Nothing, 



Nitrate of soda and muriate 



of potash. 

 Dissolved bone-black and 



muriate of potash. 

 Nothing 



Plaster, . . . . . 



Nitrate of soda, dissolved 

 bone-l)lack and muriate of 

 jjotash. 



Yield pek Acre. 



Corn 

 (Bushels, 

 10 Pounds) 



7.3 

 11.4 

 10.4 

 47.7 



4.9 

 10.4 

 68.7 

 11.2 



9.2 

 53.4 

 55.9 



8.8 

 14.6 

 56.2 



Stover 

 (Pounds) 



1,180 

 1,780 

 1,480 

 4,760 

 860 

 800 

 6,220 

 1,380 

 1,360 

 3,540 

 4,640 

 1,300 

 1,880 

 4,540 



Gain or Loss per Acre, 



compared 



WITH Nothing Plots. 



Corn 



(Bushels, 90 



Pounds). 



-3.1 

 1.0 



37.3 

 —5.5 



58.3 

 2.0 



44.3 

 47.0 



5.8 

 47.4 



stover 

 (Pounds). 



—300 

 300 



3,507 

 —167 



5,420 

 20 



2,200 

 3,320 



580 

 3,240 



The effect of each of the three elements of plant food — 

 nitrogen, phosphoric acid and potash — is more clearly 

 brouo-ht out in the tables which follow : — 



Value of decrease $0 45 



Financial result (loss), .......... 3 65 



