WINTER-WHEAT PRODUCTION AT FORT HAYS STATION. 29 
| nized, of course, that the length of time these experiments have run 
| is insignificant in comparison with the time these soils will be cropped. 
Regardless of the conclusions to which it may lead, this work is con- 
sidered of the greatest importance and will be continued. 
TABLE 12.— Yields of wheat and kafir in rotations Nos. 551 to 560, inclusive, at the Fort 
Hays branch station for the 7-year period from 1914 to 1920, inclusive. 
Yields per acre for the 10 rotations (bushels). 
~~~ | oa Pa 
No. 554,| 119, 551,| NO. 555, No. 556,| nig. 559. No. 867, No.6, No.553,| No.559,| No. 560, 
straw | check, aa manure) check, |manure|manure| check, |manure| manure 
Crop and year. 
on : 
no ma- no ma- jon kafir,|on kafir,| no ma- jonkafir, onkafir, 
pera, nure. prcat, ee Ai: nure. |3tons.|6tons.| nure. | 9 tons. | 12 tons. 
Wheat: 
LLORAS ee ste 20. 2 22.9 26. 0 27.0 24. 2 25. 0 26. 2 26.5 27.4 30.3 
1S Sa es aa 19.7 17.8 16.1 1523 14.2 14.5 16. 2 19.2 17.4 17.3 
1 ie et Gere 32.6 29. 4 27.3 33.9 37.0 38.6 38. 8 40.8 37.4 35.3 
12) of pea ep a 2. 2: 6.8 6.7 6.8 765) 8.7 8.9 Tisid 8.8 11.8 
aU Sate ae aes 10.8 iS 11.2 10.5 10.8 10. 4 8.8 11.3 9.5 10.2 
BONO A Pe taste 2.2. 13.6 12.2 13.0 10.6 10.6 123 11.6 10.5 ala Spa 
PO ee are pane PAGS} 30.3 29.6 36. 0 37.8 38.3 32.9 alee 33.3 32.7 
Average. .:.... 17.9 18.9 | 18. 4 20.4! 20.3 20.9 20.6 21.9 20.6 21.2 
Kafir: 
TAD aes Ree = 6.8 6.8 4.8 ao 8.5 7.8 6.9 8.8 9.2 Uist 
1G) ee 58. 2 55.5 52.8 55.3 54.3 53. 4 51.9 50. 4 52.3 47.9 
FSTGE AE ER Sie ce 7.5 13.8 18.2 11.6 DEN 5.8 Ape 168 1.1 .6 
ie rape See Fe 0 0 0 0 ol #2 1 ay o2 28 
PONG oa Sree Se ays 4 4 A 4 ni ai) .o a5 1.0 
LG: Ae De ae 28.3 36.3 35.8 37.2 39.7 32.0 PAE 29.6 23.3 22.2 
HOPOMS EES see 59.5 54.9 59.6 67.7 67.4 63.6 65.3 66.6 70.8 66.3 
Average.....-- 22.9 24.0 24.5 25. 4 26.1 23-3 Dood 22.5 22.5 20.9 
In 1919 experiments were started to determine the effect of com- 
mercial fertilizers on wheat production. At the same time extensive 
work was started in further methods of seed-bed preparation for wheat 
following winter wheat, and a test of the disk and lister drills on the 
different seed beas. Itis too early to draw any conclusions from these 
experiments. 
SUMMARY. 
The Fort Hays branch station is located in Ellis County, Kans. 
This county is in the western tier of the solid block of ‘‘ million-bushel”’ 
wheat counties in that State. Statistics of the Kansas State Board 
of Agriculture ° show that the agriculture of this section has been 
stabilized for 30 years by devoting nearly three-fourths of the cul- 
tivated acreage to winter wheat. The statistics also show that during 
this period there has been no change in yields. The average yield of 
Ellis County for the 30 years from 1891 to 1920, inclusive, is only 9.6 
bushels per acre. 
The statistics of crop acreage show that if every acre in other crops 
were seeded to wheat it would still be necessary to sow approximately 
two-thirds of the wheat following wheat. About one-half of the other 
9 Kansas. State Board of Agriculture. Biennial Report, v. [3-27], 1874-1919-20, Topeka, 1874-1921, 
