174 



Bulletin 143. 



the frequent use of the cultivator after thinning and weeds begin to 

 show themselves in the rows another handhoeing must be given. 



It is impossible to say just how much tillage may be required for 

 best results, but probably one to three handhoeings and four to six 

 cultivations will be sufficient. 



Some effort was made to determine the effect of very frequent cul- 

 tivation in comparison with good ordinary tillage. Mr. J. W. 

 Gilmore, a senior in the College of Agriculture, conducted experi- 

 ments with a series of eight plats, four of which were cultivated seven 

 times and four of them live times, with results as shown in the follow- 

 ing table : 



Mr. Gilmore's Culture Experiments. 



This experiment is given in full on page 185. The averages as given 

 here indicate no gain by seven over five cultivations. 



Messrs. D. M. and A. S. Green, Adams, Jefferson Co., con- 

 ducted cultural experiments on four plats, two of which were culti- 

 vated weekly from June i to September 5, and two were cultivated 

 fortnightly for the same period. The results are shown in the follow- 



ing table : 



Messrs. Green's Culture Experiments. 



