124 INDIAN CORN CULTURE. 



As no manure was used the yields are natur- 

 ally small, but the balance in favor of the ro- 

 tation is a large percentage. 



For 18 years rotation tests have been con- 

 ducted on corn at the Illinois station.* Where 

 corn, oats and clover were grown in rotation a 

 decided gain in yield of corn was secured over 

 those plats which did not receive a dressing of 

 commercial fertilizer, that were not in rotation. 



Systems of rotation. — There are numerous 

 rotations including corn which are satisfactory. 

 On the Purdue University farm a rotation of 

 corn, oats, wheat, clover sown on wheat in 

 early spring of third .year, and cropped fourth 

 and fifth years, proves quite satisfactory. To 

 favor large cropping stable fnanure is well dis- 

 tributed over the clover stubble before it is 

 plowed in. The corn has a fertile field and its 

 cultivation cleans it of weeds in good shape for 

 the crops which follow that receive no hoeing. 

 The oat plant is a gross feeder, and following 

 after the corn it finds the ground well enriched 

 with the available food in the roots and stubble 

 and the manure previously applied. 



For the Southern States where red clover 

 will grow, Gulley recommendsf the following 

 five-year rotation: Corn; clover on corn stub- 



* Illinois agricultural experiment station,- Bulletin No. 

 30, p. 357. 



t First Lessons in Agriculture, 1892, p. 86. 



