Live Stock Breeders' Association. 



265 



On chart IV is given the history of fifty years of wheat culture 

 in Ohio. The figures here given show an increase in bushels per 

 acre for the last twenty years as compared with the first twenty 

 years of the half century period. You will notice the increase is 



WiLLIAMS 



^.7 1 -^r 



FULTON J l-OOAB 



DEFIANCE 



Fifty years of wheat culture in Oiiio: Increase or decrease of yield for the 20 years, 

 1880-99,, as compared with the 20 years, 1850-69. 



practically as large over the western counties, where no fertilizer 

 has been used, as where its use was most extensive. It is smaller 

 in the middle than in the northern third of the State and is smaller 

 in the southern portion than in the middle. Evidently, better drain- 

 age and better tillage have contributed nearly as much to increase 

 of wheat yield as use of fertilizers. 



