WINTER WHEAT IN THE GREAT PLAINS AREA. 
23 
rye and after peas average practically the same, though in 1908 the 
yield after peas was very much lower and in 1910 very much higher 
than the yield 
of common field peas. 
after rye. 
Previous to 1910 cowpeas were used instead 
(Table XIII.) 
Taste XIII.— Yields and cost of production of winter wheat by different methods at the 
Hays Field Station, 1907 to 1916, inclusive. 
Num- y Yield per acre (bushels). 
Treatment and ae r 
previous crop. oor Terounaa Niet 5 oars 
aged 1907 | 1908 | 1909 | 1910 } 1911 | 19 9 9 1915 | 1916 age. 
Early fall plowed: Win- 
COTAWREAT as ecco s 1 | 18.2 | 23.2|}aH | 27.8] 0.3 | 13.8 | 2.3 | 24.8 018.1 [629.7 17.6 
Late fall plowed: Win- 
COrAWNeS ta = sescs. 6 =e Da 25565) E2083) v0 2.3 2 Su -2OSON Pe sd eal 11.0 
Listed: Winter wheat-. Pp 25 4) 28.00 EL 186.57, -6 | 26.6] 8.4 | 23.1} 13.9 | 23.1 19. 2 
Subsoiled: Winter 
wihteats ei: as os: ise it \plBsOs|eo0son|, EL 39.8 #3) 2051 |. 4. 18) 25,3), 14.9) 2756 19.6 
Disked: Corn...-....... ANH SX} | allege bl Ae ry SUSE Gale ite oe | lL SsOn le cOnde oilers, 15. 4 
Green manured: 
Wiitherye:t toch QA TOKO) 225554 Eb 26.8)|) 128) 6.630 8:4 21 75/2 20:.8) 3. 3 16.8 
With peas ¢ -...... 2 MASS One le ES Ond I 2aObl one cond a 2acOule 2029) \al. 5 iWfadl 
Total or average. : AS D276 sel Sol c|iee oe Boel We ee Oe erde O} lee Ziel 20s) poled: 17.0 
Summer tilled......... 2 |d12.3| 30.7| H | 42.6] 3.9 | 28.5 | 13.4 | 20.8 |/16. 4 |736.0 PPR T 
Average of all 14 plats. .|........ A Gn | 20NG) ee se 32.5 | 1.3 | 14.4] 7.1] 20.8 |917.0 [932.7 17.7 
SUMMARY OF YIELDS AND DIGEST OF Cost. 
Tillage treatment. Previous crop. 
Yields, values, etc. Early | Late Sub- Green | Sum- | Winter 
(average per acre). fall fall | Listed | soiled | Disked| ma- mer | wheat | Corn 
plowed} plowed; (1 qd (4 nured | tilled (4 (4 
1 qd plat). | plat). | plats). (4 (2 plats). | plats). 
plat). | plat). plats). | plats). 
Yields of grain: 
LODZ sie Otek ok bushels 18. 2 ble 7/ 12.4 13.6 8.2 12.6 | d@12.3 14.0 SD 
1OOSE Me SES TT Se do.. 23. 2 25.6 28.1 30. 5 11.1} e18.1 30. 7 26.9 11.1 
1900 eet ge pee es dows. |e, H H H H H H H H 
LOT Os a SR eee teh do.. 27.8 20. 3 36. 7 39. 8 28. 2 33. 2 42.6 31. 2 28. 2 
TT hae ee eee do.. Ae) 0 -6 3 3 1.9 3.9 58 333 
WGN RR Sei 2 Bee do. 13.8 2.3 26.6 20. 1 13.6 7.0 28. 5 15.7 13.6 
TO Ee See eee do.. 2.3 8 8. 4 4.1 7.2 (ha! 13. 4 3.9 U® 
AQUA ee ae) do.. 24. 8 20.6 23. 1 25.3 18. 0 21.1 20. 8 2305 18.0 
OS a ee ee a eee do.. 618.1 9.3 13.9 14.9 20. 1 20.8 | £16.4 | 215.4 20.1 
NOL Gs steee ht see do.. b 29.7 8.7 23. 1 27.6 31.7 31.4 | £36.0] 224.8 31.7 
Aseria geste oe kerr 2 17.6 11.0 19. 2 19.6 15. 4 17.0 2250 18.4 15.4 
Crop value, cost, etc.: 
Wiltiemearctiie aa abide = $12.32 | $7.70 | $13.44 | $13.72 | $10.78 | $11.90 | $15.89 |........]........ 
WOS ree Sees ees 6. 32 5.65 5. 03 7.03 AZO else OO | LONG 4s ee cee eee 
Profit or loss.........-- 6/00) 2"05 Pe Saran": e269 | 6. 53.2206") as | ae aes 
a H=destroyed by hail. 
b Three plats in 1915 and 1916. 
¢ Cowpeas were grownfrom 1906 to 1909; field peas grown since 1909. 
d One plat. 
e Three plats in 1908. 
f Thirty-one plats. 
g Forty-five plats in 1915 and 1916. 
h Six plats in 1915 and 1916. 
The highest profit has been obtained from listing, which yields a 
greater profit than-subsoiling, because it is a less expensive method. 
The profit on disked corn ground is slightly lower than from subsoiling 
