Arizona Agricultural Experiment Station 269 



for green manuring purposes. A crop of Whippoorwill peas could be 

 planted to take advantage of summer rains and plowed under in the fall. 

 Sudan grass: Sudan grass was planted on three dates: April 15, 

 May 18, and July 21, respectively. The April and May plantings gave 

 a very imperfect stand which was further damaged by grasshoppers. 

 The July planting was on very thin soil underlaid with caliche at a 

 depth of about 12 inches. The yields in all the plantings were very un- 

 satisfactory, less than a ton per acre being harvested from the April 

 and July plantings, and only about 600 pounds per acre from the May 

 planting. 



Two cuttings were made from each plat. The results obtained 

 from the work with Sudan grass should not be taken as evidence that 

 this crop cannot be made to yield profitable returns on this dry farm. 

 The performance of individual plantings more favorably located as to 

 soil conditions and the appearance of portions of the plats where the 

 early planted seed found sufficient moisture to germinate, indicates 

 that if properly handled, Sudan will become a very valuable forage 

 grass for this region. 



conclusions 

 The short season crops must be delayed until the coming of the 

 summer rains in July. The dry farmer must farm with the moisture as 

 the limiting factor ; and to conserve that moisture and take advantage 

 of it at the proper time is his main problem. 



This year's results would indicate that Dwarf kafir, Mexican June 

 corn and Sudan grass planted in March on fall plowed ground ; feterita. 

 Club-top cane, Tepary beans, cowpeas, and a second crop of June 

 corn planted in July on a previously prepared seed bed moistened by 

 the first rains of the summer, and small grains sown in October on the 

 Tepary bean ground, would furnish ample feed for the livestock farmer, 

 and at the same time give a crop of beans or wheat to be placed on the 

 market for cash. 



J. F. Nicholson, 



Agronomist. 

 H. C. Heard, 

 Assistant Agronomist. 



