43 



One cubic foot weighed 50 pounds ; that applied to the plot, there- 

 fore, by calculation, 1600 pounds. At this rate manure would supply 

 per acre: nitrogen, 110.7 pounds; phosphoric acid, 49.8 pounds ; 

 and potash, 41.3 pounds. 



SUMMARY OF WEATHER OBSERVATIONS. 



June 9th to Oct. 1st, 1890. 



*11S days. 



These figures indicate a cool and dry growing season and a cool 

 and wet season for filling and ripening. 



RESULTS OF THE ADDITION OF NITROGEN TO 



Muriate Phosphoric 



' Phosphoric of 

 Nothing. Acid. Potash. 



Acid and Average 



Hard corn, bushels per acre, -4.4 

 Soft corn, " "• -1.7 



Stover, pounds " 60 315 



Value of net average increment, 



Financial result, 



-.8 

 135 



Potash. 



5.5 



-1.4 



1015 



$ .47 



3.53 loss 



Result. 



.3 

 -1. 



224 



RESULTS OF THE ADDITION OF PHOSPHORIC ACID TO 



Nitrate 

 and 



Potash. 

 9 



Hard corn, bushels per acre, 1.9 

 Soft corn, " "■ -.1 



Stover, pounds '' 230 



Value of net average decrease 



Financial result, 



Nitrate 

 Nothing, of Soda. 



■2.5 



Muriate 



of 

 Potash. 



1.6 

 -145 



-5.1 

 -.5 



-2477 



-1.1 

 -1597 

 $3.35 

 8.15 loss 



Average 

 Result. 



-1.4 







-947 



Nothing 



Hard corn, bushels per acre, 11.6 

 Soft corn, " '' -.7 



Stover, pounds '' 2732 



Value of net average increment 



Financial result. 



Nitrate 



of 

 Soda. 



RESULTS OF THE ADDITION OF POTASH TO 



Nitrate 

 nd Phos 

 ph'ricAcid. Result, 



11.8 4.6 14.5 10.9 



.2 -1.1 -2.5 -1. 



2807 



Phosphoric and Phos- Average 

 Acid. 



4.6 



-1.1 



25 



1355 1730 

 $11.50 

 8.25 gain 



