WHEAT PRODUCTION ON DRY LANDS. . 47 
those obtained from each of the two early sowings. ‘This is especially 
true of the two latest dates of sowing. 
TABLE 27.—Annual and average yields of Turkey winter wheat in rate-and-date-of-sowing 
experiments conducted at Moro, Oreg., during the 6-year period from 1916 to 1921, 
inclusive. 
Annual and average yields per acre (bushels). 
| Average | 
Rate ofseeding. date of 
sowing. 1916 1917 1918 | 1919 | 1920 | 1921 pie 
ae Sept.17| 330] 283 ay 0 ene Ae, 40.0 29.7 29.9 
- Se Oct. 2 48.3} 21.0 22.3) 33.0 35.0 46. 0 34.3 
=e Oct. 14, 49.8 $405 35.3 24.7 34.3 31.6 
7" eee Oct. 30) 23.3 13.3 16.3| 27.3 24.3 28.0 22.1 
“=i Nov. 19 21.6 16.0 Fe, Gre OE 6 Geet Oe, 53.0 19.4 
LT eee eee 35. 2 | 18. 5 18.1 31.8 31.0 | 32. 2 | 27.8 
SS ee Sept.17! 30.0 34.0 19.0 34.3 43. 44.3 | 34.1 
eer... Oct. 2 41.2 23.0 26.6 31.3 39.3 41.7 | 33.9 
eke Oct. 14, 44.0 oe Lee 38.3 29.0 37.3 | 32.5 
(ie Oct. 30 23.3 13.0 16.6 28.7 25.3 28.7 | 22.6 
a aes Noy.19| 22.3 17.0 are as ee: 23.6 | 20.1 
Average........ | Ee BA 32.2 20.1 19.9] 33.2 34.2| 35.1] 29.1 
— ee bee ote. i-093.7 35.3| 20.3 34.0] 40.7 42.0 | 32.7 
_ = Ot. 2|-- m6) 227 26.0 26.7 377 44.0 33.0 
7 2 =e Vi SE a ale ae oe re 23.7 26.0 43.7 32.1 
gee i Oct. 30/ 333] 137 19.0 533 | 22.0 7 25.5 
a Nov.19| 25.3 See} = 20.0 |0 9.20.2 :. besten 25.7 22.3 
(| ae 31.6 21.6 21.3 32.9 31.6) 37.4 | 29.5 
~ 2 es Sept. 17 93.3 38.3 17.3 36.7 49.3 42.3 34.5 
<= ee | Oct. 2 53.0 25.3 25.6 38.0 39.7 41.7 37.2 
= =a Oct. 14 28.3 ee 42.0 25.0| 39.7 31.1 
= Se eee Oct. 30 40.6 13.7 21.0 31.7 SL Ot *3k3 26.6 
20 Se ees Noy. 19 30.0 | 18.6 DEG sa ICN eae 25.3 23.9 
Average. .......}..2......- | 35.0 23.2 21.4 37.1] 33.8 36.1 |= oes 
i — aa eS — SSS Eee 
J. eee Sept. 17 31.3 | 34.3 | 22.0 | 36.0 | 42.3 | 37.7 33.9 
pemetunn so. | Oct. 2| - 25.6 6.7 mB 3iS 385 38.7 44.0 32.5 
[ oe a a? ie | eee 40.0 2.3! 36.3 30. 7 
_ ee Oct. 30} 40.0 14.0 27.0| 34.7 17.3 27.7 26. 8 
“=e Nov. 19} 30.6 20.3 eee eee 25.7 23.9 
ae ee b= =ser | = 27 23.3 36.3 31.2 34.2 29.9 
ereke so | Sept. 17 38.3) 26.3 ”.7|° 36.3 45.3 42.0 | 35.5 
Bieesenes | Oct. 2 1.31 27.0 27.7 39.3 40. 8 40.0 32.7 
|S ae Oct. 14 2S a 2 re 41.0 27.0 37.0 32. 1 
(= eee Geese ag | 145 26.6 32.7 22.3 31.3 28. 2 
1 ea Nov. 19} 263| 20.6 EG EAs) Te ae 25.7 24.0 
Average........ Jesaseneeee 36.5) 23571 > 25.6 37.3 33.9 35.2 | 30.9 
LT a | Sept. 17 33.0) 21.0 | 25.7 | 32.3 49.3 41.3 34.6 
Seeks | Oct. 2 Oe aT #. 20.7 33. 8 37.7 39.7 31.4 
Seis oe Oct. 14 aS Eee. 5 Tie ini— sues 29.3 39.3 33.1 
ee Oe | Oct. 30 | 43.0 | 14.0. 28.7 30.3 | 25.7 25.0 27.8 
a: a | Nov. 19 | 24.6 | 22.6 | ations 2 [eee ieee 26.3 23.5 
Average........ tae 32.1} 21.7 26.1 33.6} = 35.5 34.3 30.5 
SUMMARY OF TOTAL AND AVERAGE YIELDS PER ACRE. 
| Yields at all rates 
| of seeding (bushels). 
Average date of sowing. |————__——_—— 
6-year | 6-year 
| total. | average. 
ERED oh aie is. e Se ee ews FSO 1,411.3] 336 
I te edo ca arts ey SP ke ee tee 1,409. 2 | 33.6 
ann Re IN yer | tie Et ee 1,115.5 | 31.9 
SE SSR eee a ee Ph 1,076.8 | 25.6 
UI ene ne cee ce eB nen ene 627.6 22. 4 
