Univkrsitv of Arizona 293 



eliminate it as a commercial crop. The yield of Common Six 

 Row barley averaged 66 bushels per acre, thus making a very 

 profitable and satisfactory small grain crop. 



COTTON 



No short staple cotton was grown. Nineteen acres were given 

 over to the growing of Egyptian long staple of the Pima variety. 

 One acre of this was volunteer, that is, it was allowed to grow from 

 the stubs of the previous year's planting. This acre looked very 

 promising during the growing season, producing the first blossoms 

 and open bolls of any cotton on the farm. However, examination 

 of the plants at picking time showed that a considerable number of 

 bolls were moldy or rotten. The fiber is weak and short, and the 

 percentage of lint to seed is small. This year's results would indi- 

 cate that it is decidedly unprofitable to grow volunteer cotton. 

 Rate of thinning experiments were conducted, also date of planting 

 experiments. 



MISCELL.\NEOUS CROPS 



A number of miscellaneous crops were tried on a small scale 

 during the year. These crops include fiax, buckwheat, castor beans, 

 rye, rape, and kale. Two or three varieties of flax gave consider- 

 able promise. The buckwheat would be considered a complete 

 failure. The castor beans, altho planted late, made an extremely 

 vigorous growth and produced considerable seed. Rye was less 

 valuable than either oats or barley. 



PRESCOTT DRY-FARM 



The fall of 1917 was extremely dry and it was impracticable to 

 plow the various fields of the Prescott Dry-Farm. Thus the spring 

 planted crops of 1918 were started under a serious handicap. The 

 growing season of 1918 proved less favorable than for a number of 

 years preceding. However, creditable silage yields were secured 

 from Club Top sorghum, darso, kafir, and milo, also from a number 

 of varieties of corn. The grain yields of all were very light and 

 most of the varieties were harvested for silage purposes. A total 

 of 125 tons of silage was secured. Tests with potatoes this year 

 proved a failure. Likewise Canada field peas were a failure and 

 the results secured with beans were of mediocre value. 



A considerable number of sweet clover plantings made at inter- 

 vals of two weeks failed to germinate uniformly, and no results 

 worth while were secured from them. Sudan grass again proved 



