1918.] FIELD CROPS. 631 



proved to be superior to other millets for the past three years, but is inferior 

 in both yields and quality to Sudan grass. 



Alfalfa tests conducted in the dry uplands since 1903 Indicate that only 

 occasional stands can be obtained, although the crop is an unquestioned success 

 on the bottom lands of western Kansas. Annual legumes have not proved profit- 

 able either for hay or for seed, but Tepary beans offer some promise. 



The highest yields of barley, oats, and spring and winter wheat were again 

 obtained on disked corn ground. Kafir corn and milo maize gave the best 

 results with fall or early spring plowing. 



Winter wheat sown on summer-tilled land on the Garden City substation pro- 

 duced the highest yield, 21.3 bu. per aa-e. Land subsoiled every three years 

 failed to give increased yields over land not subsoiled. Winter wheat sown on 

 disked corn ground produced 16.8 bu. per acre, and that on disked potato ground, 

 14.8 bu. 



The highest yields of spring wheat, 16.1 and 17.4 bu. per acre, were obtained 

 from disked corn land and summer-tilled land, respectively. The highest oat 

 and barley yields, 56.7 and 45.3 bu. per acre, respectively, were obtained on 

 summer-tilled plats. Fall plowing for oats resulted in a yield of 28.8 bu., and 

 spring plowing one of 37.2 bu. Barley yields for these methods amounted to 

 24.2 and 31.4 bu. per acre, respectively. The highest yields of Dwarf milo 

 were obtained on land listed in the fall, and amounted to 41.9 bu. of grain and 

 3,900 lbs. of stover per acre, with yields of 38.2 bu. of grain and 3,300 lbs. of 

 stover on fall-plowed land. Spring plowing showed much lower yields. 



In variety tests with sorghums for grain. Dwarf Yellow milo was first with 

 48 bu. per acre. Sumac was first in yield of forage with 17,200 lbs., and Orange 

 second with 15,800 lbs. Kafir corn grown on fall-plowed plants produced 4.3 

 bu. more grain and 1,309 lbs. more stover per acre than that grown on fall- 

 listed plats. Summer-tilled land produced 45.6 bu. of corn and 4,000 lbs. of 

 stover ; spring-listed, 35.6 bu. of grain and 2,500 lbs. of stover ; spring-plowed, 

 33.1 bu. of grain and 2,730 lbs. of stover; fall-plowed, 28.4 bu. of grain and 

 1,761 lbs. of stover ; and subsoiled, 30.5 bu. of grain and 2,970 lbs. of stover. 

 Freed White Dent was first in corn variety tests with a yield of 47 bu. per 

 acre. Kharkof and Turkey Red were the best winter wheat varieties tested, 

 with a yield of approximately 16.5 bu. Marquis and Kubanka, with average 

 yields of 11 and 10.6 bu., respectively, were the highest yielding spring wheat 

 varieties tested. The highest oat yields were 24.4 bu. for Kherson and 20.2 bu. 

 for Red Texas, and from Common Six Row and Common California for barley. 



The most profitable yields of cereal crops were obtained with a winter irri- 

 gation of 6 in. followed by a second application of from 4 to 6 in. when the 

 wheat was in the boot stage. With forage crops one winter and two summer 

 irrigations, totaling 12 in. of water, are deemed sufficient, while alfalfa was 

 found to require an application for each cutting. The estimated cost and net 

 profit for irrigation where the water must be pumped 130 ft. are indicated for 

 actual field tests with alfalfa, winter wheat, oats, and Sudan grass both for 

 hay and seed. 



In corn variety tests on the Colby substation, Freed White Dent, Pride of 

 Saline, Ford County White, and Bloody Butcher, with yields ranging from 42.6 

 to 39.7 bu. per acre, were highest. Kanred winter wheat yielded 34.25 bu., as 

 compared with 33.66 bu. for local Turkey. Bearded Fife and Black Macaroni 

 spring wheats yielded 30 and 31.4 bu. per acre, respectively. Red Amber 

 sorghum was the only variety to mature good seed In 1915. 



Freed White, Red Amber, Black Amber, Dakota Amber, and Minnesota 

 Amber, with yields ranging from 15 to 20 bu. per acre, were the only sorghum 

 varieties to produce grain in 1915 on the Tribune substation. Pink kafir, 



