736 IOWA DEPARTMENT OF AGRICULTURE. 



Shallow Cultivation Increases Yield Four Bushels. — In a five-year series 

 of tests comparing shallow cultivation of corn with deep cultivation the 

 results were an average yield of 70-3 bushels per acre for the former and 

 66.7 bushels per acre for the latter — an average increase of 3.6 bushels 

 due to shallow cultivation. 



Drilling Oats Increases the Yield Four Biishels per Acre. — In ten com- 

 parisons of sowing oats broadcast and drilling them in, there was a dif- 

 ference in yield of four bushels per acre in favor of drilling. 



Large Seed Increases the Yield. — Results from the Ontario Experiment 

 Farm were quoted to show the benefit of using seed of large size. Seven 

 crops of oats showed an average yield of 62 bushels per acre from large 

 seed and of 47 bushels per acre from small seed — a difference of 15 

 bushels per acre in favor of large seed. As the average of six years' 

 work witli winter wheat the large seed increased the yield from 40 to 

 47 bushels per acre. The same number of experiments with field peas 

 resulted in an average increase of five bushels per acre due solely to 

 large seed. 



