59 BULLETIN 1301, U. S. DEPARTMENT OF AGRICULTURE 
Spring wheat is an important crop in this section, and no doubt will 
continue for some time to cco the most prominent place in the 
cropping system. 
WINTER WHEAT 
Winter wheat has been sown on five continuously cropped plats 
for nine seasons. Plat A is plowed just before seeding, plat B is 
early fall plowed, plats C and D are alternately fallowed and cropped, 
plat E is early fall plowed and subsoiled, and plat F is listed early and 
worked down before seeding. Winter wheat has not survived the 
winter during any year on any of these plats, and they have been 
resown to spring wheat. It has lived when sown in the bottom of 
lister furrows, but the yield was not enough to be profitable. Winter 
wheat has been sown’ in standing cornstalks and standing sorgo 
stalks, but it did not live in either place, although put in under the 
best of conditions. Winter wheat has been grown successfully in 
limited areas in this section by drilling it into grain stubble. This 
seems to be the most promising method for anyone who wants to 
try this crop. 
TaBLE 17.—Yvields of oats in two fields at the Northern Great Plains Field Station 
following different cultural treatments and various crops for the 8-year period, 
1915-1922, inclusive 
'Num-| Yields per acre (bushels) 
| bet a 
| ! 
Field, treatment, and previous crop | aM | 
laver-| 1915 | 1916 | 1917 | 1918 | 1919 1920 1921 | 1922 | “Yeh 
aged | | | as 
MAIN FIELD 
Disked: | | 
C Onna 22 es sae eee Sed ie CLIO FASS 7272 202725) || 2456 eleloso 6.3 | 56.4 | 34.4 
RO CAbOCS Sess seas ees = ee ee 1_ | 68232562555) 4351 | 335 13050) | 2358 9.7 | 67.8 | 42.3 
Sorgo ES ie Sse eg 1 | S850 50598192659" /5 2550) |p 25st 2020 452) || DOGS EES 3 a0. 
Spring plowed: | | | | | 
(0) 610 ee ee a NS a a 6 | 72.7 | 52.0 | 28.2 | 33.7 | 24.9 | 175 | 10.0 |-5f8 |= -37at 
Sonne Wiha Gass eee eel aie ant 4; 60.3 | 53.4 | 26.9 | 30.3 | 24.2 8.5 | 12:8 | 63:9 | 35.0 
IBY) een ley eee een, WU a 1 | 45230457 0N 2354 | 27.5 | 15.3 | 17.5 | 9.4) 50.6 | 29.3 
OBESE eR Pie Rea SE 1 | S455 Se R44 A 285 1s 12957 | 1529 leet) di Beye bh PRET 
Fall plowed: | | =| | 
SDrIn ohwih cates ee eee ee ee 12 | 68.5 | 55.9 | 24.8 | 19.9 | 21:8; 6.1{ O | 42.2] 29.9 
Ea el (GN fas eee oe ees i yrenche sao eae 3 | 66.0 | 58.5 | 26.6 | 18.5 | 23.4 7.4 OF 3885 29.9 
Oats: = see ea ee ee EOE Te 1) | SSOR Se Poe om e25alen eos Ol OSS oY On 12954 Pea f 
Summer fallowed: 
WUinmanured&-<. 2- = Se ce 5 1103. 5 | 66:0 } 39.1 | 44.9 | 28.4 | 24.9 | 13:05) 7423 49.3 
Wiantined 25 se. 2 soni ae 2 |100: 6 | 66:9 | 45.8 | 51.1 | 31-9 | 29.9 Soo ate 2 ol. 5 
Green manured: | | 
AWE GE DSIy Cle rae Se ee ee oe 1 | 63.6 | 58.8 | 41.2 | 24.7] 19.4 | 14.4) 6.6! 35.0) 33.0 
I CAS Sean 8 Se ee eae a ere ae eS tetas 8) |) (GD) SR Ss | PA The|) Zales ey Cs 26 w) 34.4 
dae SweebncClovere sso = ene ene DT Peto Tt |) RE Wa eB bik P2253 |) 2258) Fs e aL 7.8 | 27.5 32. 9 
od: | | | 
IB TOME: Brass tlee © Sen ee ee ales 2 1 | 57.2 | 39.4 | 18.4 | 24.4 | 20.0} 6.9 828s On aee24e3 
INVES te ee a EE ogee | COSOe GSa See Sr A Se Sool Ol ees OSA: Ob Gs 
Subsoileds Oats ate sas eres i | LP S775 e Sa 2 9/19: 1 | 1864.1 14 1 166) Ome etal gieeonas 
LES EGXC MOG) ert Bei ee 1}! 4958554025505) 27, 53) 1354 | 97 | 6.6 | 44 AS 2SRo 
Avverage ofall53) platsss- sae = |e 71..2)| 55.3 | 28:6 | 28.3)| 23.2 | 12.9 |- 16.1 | se25ee34 
SOUTH FIELD : | 
Syombae Ono Opies. ee PAGE. @) || Gos) 1] WSS | O 24°65) ) 1435) “4 1e eo O eet 
Fall plowed: | 
OLS He eee ce ee LE renee Prise (0) |) SVs |) IRS 0 18.8 | 3.3 0 46.9 28. 3 
Spring wheates #28. ae eee Were || Gil ik t PASS I 0) 21.4 | 4.1 SaSt 4a tubes 
SdomTneye fen eGle ee A T2358) 563o0h ole. 9 1 2765 103256) |e265 te leere Seale kaeeroeG 
Subsoiled:<Oatsse 37a ee ee eee | PAA (ate toy || SUE! ZBL 0 PRPC a|le mabey ttt SIE Ape 2Suo 
EIsted:sO38ts secs aE eee ae PAN hs (8) |) GOS |) “AE ¢ 0 25.0 | 12.0 Lot dos o l= Sle 
= heres . } 
AMVeraceOhall aaplaisee sen eee ea! S7eS0le 588 024504) 9) 2584s LON See sabe O one seo 
1 Discontinued in 1922. 2 7-year average. 3 51 plats in 1922. 
