206 



CORN CROPS 



off has given almost as good results as when the soil was 

 given good cultivation. 



METHODS OF TILLAGE COMPARED 



141. In the following tables are shown the results of 

 three of the above-mentioned experiments under very 

 different climatic and soil conditions, namely, New Hamp- 

 shire, Illinois, and Utah. Ah give the same general con- 

 clusion — that culture beyond the destruction of weeds 

 has not given much increased yield. 



TABLE XLVIII 



Results at Three Stations with Different Methods of 

 Cultivating Corn. New Hampshire Station (Bul. 71, 

 1900) 



Kind of Culture 



Yield 

 Bushels per .A.cre 



No culture, weeds permitted to grow 



Shallow, 14 times 



Shallow, .5 times (ordinary culture) 



Deep, .5 times 



Mulch, covered with swamp hay 



17.1 

 80.6 

 79.1 

 69.7 

 56.1 



Illinois Station (Bul. 31, 1894) 



