416 Thiktiktii Annual Ricport 



satisfactorily and from those portions of the field left until maturity- 

 seed of good quality was harvested for the plantings of 1920. 



A local variety of corn called Bloody Butcher produced some 

 reasonably good corn and approximately 12 tons of silage per acre. 

 Another variety of corn developed in Gila County, Arizona, and for 

 years grown under dry-farming conditions, produced first-class ears 

 and shows considerable promise for this locality. Seed has been 

 saved and the variety will be tested further in 1920. 



A considerable number of varieties of sorghums were tested, 

 but of them all dwarf milo maize proved most satisfactory. The 

 varieties tested included red amber. South Dakota amber, Freed 

 sorghum, Darso, feterita, hegari, and sumac. The fact that Pres- 

 cott has an elevation of approximately 5,300 feet, resulting in cool 

 nights during the summer months and cool weather in the spring 

 and fall, makes this climate better adapted to corn than to sorghums. 



The sorghums that did not make a satisfactory grain yield 

 were harvested and stored as silage, thus providing feed and facili- 

 ties for the Animal Husbandry Department to carry on feeding 

 experiments. 



Sudan grass planted in cultivated rows 42 inches apart pro- 

 duced a first-class seed crop and that portion of the field harvested 

 for hay produced two satisfactory cuttings. Sudan grass is well 

 adapted to the region about Prescott and is a satisfactory field 

 crop. 



II. A CONTINUATION OF STUDIES OF SULPHUR SPRING VALLEY DRY-FARM. 



The purpose and work of the Sulphur Spring Valley Dry-Farm 

 is very similar to that outlined for the Prescott Dry-Farm. Al- 

 though the conditions are dryer and consequently more severe, 

 resulting in smaller yields, still the results throughovit are com- 

 parable with the results secured on the Prescott Dry-Farm. How- 

 ever, the growing season is a little longer and sorghum crops are 

 more satisfactory, partly because of lower elevation. Perhaps the 

 best crop grown on the farm under strictly dry-farm conditions was 

 a field of red amber sorghum planted in late March. This field 

 withstood the extremely dry weather of June, July, and August, 

 and when a good rain of early September supplied needed moisture 

 the crop developed rapidly and made considerable silage. Black- 

 hulled kafir planted at the same time under the same conditions 

 made more silage, but did not mature as well ; consequently its 

 feeding value was not as good as that of the red amber. 



Sudan grass proved a failure in 1919. The small Sudan grass 

 plants died of drouth before they had attained sufficient size to 



