420 



'I'lIlKTir.I 11 Ax MAI. KKI'OK'I 



Pig. 3. — Wisconsin barley and Abriizzi rye — State Experiment Station, Mesa. 

 IX. FIKLD STUDI]>;S WITH LP.GUMES. 



This is a very definite project outlined to answer the two 

 questions : "Is inoculation of legumes necessary in Arizona ?" and 

 "Does intercropping of field crops with a legume increase the 

 yield?" Various inoculation materials are used and various crops 

 are tested. This work has been conducted on the Sulphur Spring 

 Dry-Farm, on the Prescott Dry-Farm, on the Mesa Farm, and on 

 the University Farm at Tucson, and will be continued during the 

 season 1920. 



X. COOPERATIVE CROP EXPERIMENTS. 



In handling this project, the Agronomy Department supplied 

 seeds and planting instructions to various farmers in different sec- 

 tions of the State. Corn, wheat, cowpeas, and the sorghums were 

 the principal crops under investigation. This work will be con- 

 siderably increased during the season of 1920. 



During the fiscal year covered by this report considerable farm 

 machinery was added to the various Experiment Farms. Likewise 

 much time and money were spent in levelling land and improving 

 the irrigation facilities. The department is in much better shape 

 now than at any previous time to handle detailed experimental 

 work. 



