AGRICULTURAL EXPERIMENT STATION. 



93 



were much less than would have been the case in an ordinary sea- 

 son, they will serve to show the comparative effect of the fertili- 

 zers used in growing them and the comparative yield of stock 

 food produced by the different crops under the conditions of the 

 experiment. 



Below is given a table showing the combined yield of barley 

 and peas on each plot and the amount per acre, together with cal- 

 culated yields of Plot 1, 2 and 3 had no fertilizers been applied, 

 the average yield for the two years that the field was in grass, 

 calculated in per cent, of Plot 4, being taken as a basis. 







® • 



•_, 



23 



a © 











9 o 





Amounts of fertilizer applied 



25 



9 5j 



Pi 



a3 s> 



■a % . 



a 





per acre. 



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t^o 



« 9 » 



S 9 t> 

 Hu 9 













5 o si 







-2 o 



at 





s «a 









© 



o ~3 



* 5 «l 



Shi 



* » s 







Pi 





O P.-" 



O P*H 



Plot 1. 





5520 lbs. 



2208 lbs. 



1129 lbs. 



1079 lbs. 



Plot 2. 



1000 lbs. S.C. rock 













16 lbs. sulphate of ammo- 



4280 lbs. 



1712 lbs. 



1062 lbs. 



640 lbs. 

















100 lbs. muriate of potash.. 











I 'lot 3. 















16 lbs. sulphate of ammo- 



3555 lbs. 



1422 lbs. 



894 lbs. 



528 lbs. 

















100 lbs. muriate of potash. . 





Plot 4. 





2795 lbs. 



1118 lbs. 







— .- 



The highest yield is given here with stable manure. Then fol- 

 lows the plot to which the finely ground South Carolina rock was 

 applied. Next in order comes the plot receiving acid South Car- 

 olina rock, while the lowest in the scale is the unmanured plot. 

 There is nothing remarkable in the yield of Plots 1 and 4. They 

 produced relatively about what was expected of them. Plots 2 

 and 3 were treated alike as to fertilizers, excepting in the amount 

 and condition of phosphoric acid. Plot 2 received about 200 

 lbs. of insoluble phosphoric acid per acre, while Plot 3 received 

 70 lbs. of soluble phosphoric acid per acre. It would seem from 

 these results that the 200 lbs. of insoluble phosphoric acid was 

 more effective in producing an increase in the total weight of the 

 crop than the 70 lbs. of soluble phosphoric acid. 



In order to study the effect of the fertilizers on the relative 

 yield of barley and peas separately, and the comparative amount 

 of stock food produced by the barley and the two varieties of 



