BARLEY IN THE GEEAT PLAINS AREA. 



21 



Table XII. — Yields and cost of production of barley by different methods at the Scotts- 

 bluff Field Station, 1912 and 1914 — Continued. 



Summary of Yields and Digest of Cost. 





Tillage treatment. 



Previous crop. 



Yields, values, etc. (average 

 per acre). 



Fall 

 plowed 

 (1 plat). 



Spring 

 plowed 

 (2 plats) 



Disked 

 (1 plat). 



Listed 

 (1 plat). 



Sub- 

 soiled 

 (1 plat). 



Summer 



tilled 

 (lplat). 



Small 



grain 



(5 plats) 



Corn 

 (1 plat). 



Yields of grain: 



1912 bushels. . 



1913 i do 



23.5 



21.9 



31.3 



23.8 



24.8 



39.6 



23.2 



31.3 



1914 do.... 



4.4 



8.9 



5.8 



5.0 



5.2 



15.6 



6.5 



5.8 





14.0 



15.4 



18.6 



14.4 



15.0 



27.6 



14.9 



18.6 







Crop value, cost of production, etc.: 



$5.74 

 6.46 



$6.31 

 5.99 



$7.63 

 4.65 



$5.90 

 5.45 



$6.15 



7.07 



$11. 32 

 11.40 





Cost 















- .72 



.32 



2.98 



.45 



- .92 



- .08 











1 The crop of 1913 was a failure, due to poor seed. 



The highest yield in both years was from summer tillage. The 

 average yield from this method is 9 bushels per acre greater than the 

 average on disked corn ground, the next highest yielding method 

 under trial. Between other methods there is little difference in 

 yields, although in 1914 the spring-plowed oat ground appeared to 

 have a decided advantage. Spring plowing, disking, and listing all 

 show small profits, the greatest being from disking. Fall plowing, 

 subsoiling, and summer tillage all show small losses. 



NORTH PLATTE FIELD STATION. 



In the eight years under study at North Platte, Nebr., there have 

 been two heavy crops of barley, three light crops, two poor crops, and 

 one failure from drought and grasshoppers. 



In the average of the whole series of years a small advantage 

 appears in favor of fall plowing. There have been large differences 

 in individual years of the series. The greatest difference in any one 

 year has been in favor of fall plowing, but in the greater number of 

 years there has been a smaller difference in favor of spring plowing. 

 The greatest difference in favor of spring plowing over fall plowing 

 was in 1909. Germination was much slower on the spring-plowed 

 than on either fall-plowed or summer-tilled land, owing to the fact 

 that the seed bed was not in as good shape. A late freeze caught 

 the crop on the fall-plowed and summer-tilled land at a tender stage, 

 while the crop on the spring-plowed plats, being slower, escaped 

 almost entirely. The difference in yield between spring and fall 

 plowing in that year was therefore due to a difference in stand. 



