Arizona Agricultural Experiment Station 



263 



clean. When a ditch is grazed thoroug-hly it is left in ideal shape, for 

 the tramping- and grazing of the sheep tend to smooth the sides and 

 bed of the ditch, partially overcome the effects of gophers, and keep 

 down brnsh and willow growth which make horse work difficult. Where 

 a ditch is well grazed with sheep it is very rarely that any other work 

 needs to be done to keep it in condition. 



It seems highly probable that some headway can be gained by sup- 

 plementing these Johnson grass control methods with fall plowing when 

 practicable. When this is done, a great number of rootstocks will be 

 brought to the surface and either killed or materially weakened by the 

 frosts of winter. 



PRESCOTT DRY FARM 



The crops grown on the Prescott Dry Farm this year consisted of 

 corn, beans, peas, grain sorghums. Sudan grass, saccharine sorghums, 

 and small grains. The 50 acres in cultivation were divided into five 

 fields as nearly equal as possible. Each field was then sub-divided into 

 varying sized plats. The plats of any given field were devoted ex- 

 clusively to one class of crops. 



1. 1 I W fill lit 



mmI laiiii iMiildings at the Prescolt I>r\' Farm, Julj' 30. I'.tlti. 



RAINFALL 



Rainfall has direct bearing upon the success or failure of the farm- 

 ing operations on this farm. The season this year was very favorable 



