CORN, 23 



"In examining these results it will be noticed: That in those plots 

 where potash was one of the ingredients of the fertilizer applied, there 

 was a marked increase in the yield of corn and fodder. 



*That, therefore, potash was what caused the great increase in 

 both yields of corn and fodder. 



"Plot 2 received at the rate of loo lbs. of potash per acre, and the 

 yield of corn was 63.4 bushels. Plot 7a received at the rate of 160 lbs. 

 of sulphate of potash per acre, and the yield was 80 bushels. This 

 would indicate that 100 lbs. of sulphate of potash per acre was not 

 sufficient to produce a maximum crop. It is probable that even 160 

 lbs. was not sufficient to produce the best results. 



''Proceeding to a discussion of these results it appears: i. That 

 there was a profit in every instance where potash was used. Potash 

 used alone on plot 7 b. yielding the largest profit." 



1889. 

 Bv M. A. ScovELL, Director at the Station. Bulletin No. ^^. 

 Soil — Blue grass; limestone soil. The results obtained this year are 

 almost identical with those of the last two years, that is: 



"i. That in those plots where potash was one of the ingredients 

 of the fertilizers used, there was a marked increased yield both in corn 

 and fodder. 



"a. That in plot 15, where a fertilizer was used without potash, 

 there was scarcely any increase in yield over those plots containing no 

 fertilizer. 



"3. That the greatest increased yield was made by using a com- 

 bination of potash and nitrogen. 



"4. The use of muriate of potash alone resulted in a marked in- 

 creased yield over the plots containing no fertilizers. 



"5. That there was a profit in the use of fertilizers in every instance 

 where potash was one of the ingredients— the largest net profit arising 

 from the use of the mixture of nitrate of sodium and muriate of potash. 



"6. That there was a loss by the use of fertilizers where potash 

 was not one of the ingredients. 



"7. That so far potash has shown its effect the third season after 



application." 



1893. 

 By M. a. Scovell, Director. Bulletin No. 45. 



"The largest increase of ear corn produced by fertilizers was 29.4 

 bushels from a combination of muriate of potash, with nitrate of soda. 



