CEREAL INVESTIGATIONS ON THE BELLE FOURCHE FARM. 15 
TaBLE I1X.—Annual and average yields of varieties of spring wheat on the Belle Fourche 
Experiment Farm, 1908 to 1913, inclusive. 
Yield per acre (bushels). 
cai eas : : 
Group and variety. No.a | | 6-year 
| 1908 1909 1910 1911 1912 1913 | aver- 
age. 
| 
Durum: 
J NG I Wha Oe Sod SE le RAE ES Cee ey 2941 UES 2a ee epee (ova Be ae hee ee tlie) Rica ee || ieee ct oe om be | 
PATER Dulce ners is eee | ea ie Be 1493 DoS 22.6 8.3 0 0 a: 1h] 
1D Yo) Mele ee See x at hr AES Ba ae tiple eat 2 Ae Ae oe ee 0 OF Ete Si so ees 
BS aE ge ok see Noe eat ce 1547 PALS aS || AY 9.2 0 0 BEA ey el ae er 
Ke DANKA wee Bere (2-8 Yee ES 1354 24.8 19.5 4.0 0 QPahe| eS 5k ene eee 
TD) se Been a eee Peer eee ee AA OR 2409) Obras Ren ci7e4: 0 0 15.6 11.6 
DYNA 3 SAE = Fes eee Sh eee EEE 1516 | ¢23.8 22.6 Sate 0 0 19.1 THe 
DOR eee niysn ie eee eet ee ea 2246 PL (Di Re ahs kN eae HSIN eh we Oo Se ro ce 
TD YO ba 8 = 37 fp Me) ea aes aa tb YE Su oo AE 2882 PB) | ho eo ies Decisis eel Deane ee) (Rare en |e db te 
HE CHSSICT tyme Mes = ee hee 1584 Cy 7 Pee | a ela | TE Nel Bg lds | 
iRererodka rte. Pee eh Le ibe Ser 1350 22.5 FBP | See 0 0 16.7 11.3 
a WiellowsGharnovikass 5 ane 1444 BT) 20.9 | 5.0 : 0 0 16.5 10.9 
eC: 
Ghinkaeete seh eee en ee ee 1517 16.2 Mle at258 0 1.9 16.3 | 9.8 
Giynidoni(MinnesNof1G3) ss ee ft D8 7S ees ee | RE gOS ARS 0 15y Saye ares 
IMIG ORUIS! ot eibeanng as Se oh en BVA Ga tes 6 SE aes ey Sal | acm area (eae 3.8 1638) (eae 
IROWCES- 6 haone ee oe saeco ee 3025 18.5 17.3 10.6 0 Otay l686 10.5 
FERS eye ee oe gee ee 3022 IRR TO) 10.3 0 0 15.0 9.9 
Bluestem: 
HELMS Pepa eel eh Stee Meter 2S (A seers pee eee |e aye oiling Waa 0 WAS Dole eee ae 
JOR Pree Eee ee bE 3020 18.3 13.8 9.0 0 0 14.1 9.2 
DO Ss a See ee eee eee ee 3021 M17 Op reece te | ee i SP rel] ea Nee ay deamon 
Preston: : 
[BROS RNR 5 Sy Sa ae Deere SONS 6 [eee fee ee eet 0 19 5e| = ae 
DOS en emcee see UP eae: SOSTG ters So Sa pee os os sete eal cebu 0 AOR OS See e 
SPEINCURUEKC yon S52 tee oe es AUS AM |r ie | oben el he Sea ee Sh 0 TGH25 | Ree eee 
Miscellaneous: 
(CULT Tee 95 Se eee Ae ee ee PARES A (A a | a same (A Reece ee ne es a ez aA hee Su oe as 
Man EhUnIAS te oe pes amet De 2492 16.2 16.0 12.8 0 4.5 I/eal List 
a Cereal Investigations number. 6 Average of two check plats. c Average of three check plats. 
The rainfall in 1908 and 1909 was fairly heavy and its distribution 
was particularly favorable to spring grains, as the greater portion 
came during the growing season. In 1910 the ground was in excel- 
lent condition for seeding and the prospects for a crop were excellent 
until about June 1. The rainfall was so light during the growing 
season, however, that many of the varieties did not produce grain. 
There were only two rains of more than 0.5 inch between April 15 and 
the time the wheat matured, and these two only slightly exceeded 
that quantity. As a shower of less than 0.5 inch is soon evaporated 
and is of little benefit to growing crops, particularly in a dry season, 
the conditions were especially trying during 1910. The moisture 
stored in the soil the previous season was the principal factor in crop 
production. 
A surprising feature of the varietal test in 1910 was the larger yields 
produced by the common spring wheats in a season when it appeared 
that the durum varieties should have yielded best. The production 
of straw of the latter was sufficient for a heavy yield of grain, much 
greater than from the common varieties. From the appearance of 
the plats they seemed to have withstood the drought better than the 
common wheats, but when they matured it was found that many 
heads contained little or no grain. The only explanation of the differ- 
-4506°—Bull. 297—15—— ‘ 
Ww 
