140 



Progressive Agriculture 



lMiiE^: ;_^] ^i^ 



No. 20. Root Growth of Listed Corn 



Dangerous practice is to not split the ridge until it has becom* 

 the main feeding ground of the roots. See page 49. 



No. 21. Harvesting and Disking With Tractor 



Showing important practice of double disking ground immed- 

 iately following the harvester on J. M. Moyer's 50-acre field on new 

 breaking, average 45% bushels. See Page 37. 



