58 BULLETIN 1287, U. S. DEPARTMENT OF AGRICULTURE 
the average 351 pounds and Blackhull barley 117 pounds per acre 
annually more than Kherson, the best-yielding oat variety, thus 
clearly establishing the superiority in yield of the best barleys over 
the best oats in the 15-year period. 
The one variety of spring emmer has yielded less than either oats 
or barley. The 15-year eee yield has been 768 pounds, or 172 
poanes less than the yields of the midseason oat variety, Swedish 
elect. 
The yields on fallow and on cornland (Table 33) show clearly that 
the yields on fallow have not been sufficiently increased in any case 
to compensate for the loss of the alternate crop. Corn grown in 
alternation with the small grains averaged about 20 bushels to the 
acre during the six years. This is equal to approximately 1,100 
pounds, which is slightly higher than can be normally expected as a 
yield of corn in this section on land prepared in the usual way. 
TABLE 33.—Yields of the leading varieties of grain crops grown on fallow and on 
cornland at the Akron Field Station, 1917-1922, inclusive} 
| Acre yield (pounds) 
4 C.I | | Average 
Crop and variety NG 
oe > | 
1917 | 1918 | 1919 1920 1921 | 1922 1917 | 1917,1918, 
| to | 1920to 
1922 | 1922 
Grown on fallow: 
Kanred winter wheat_________- | 5146 888 1,356] (2) VU G6(4S le 1G: lett Oren 1, 241 
Peliss (durum) spring wheat__.| 1584 726 | 252] 588 | 1, 236 606 | 582 665 680 
Converse spring wheat_______- 4141 618 | 480} 810] 1,110 498 | 708 704 | 683 
Kherson spring oats__________- 459 525 | 237 | 544] 1,251 970 | 947 746 | 786 
Smyrna spring barley__-_______ 2642 | 965 888 | 624 1,406 | 893 | 1,550} 1,054 1, 140 
Giant Winternyes a 30 | 1,036 | 330 2 734 | 924 | NO A Re Ree eS 859 
Vernal spring emmer_--_-_______- 1524 | 600; 175 |3317 1, 688 210 | 458 575 626 
Akron White corn 4_-______-___- eee aes aes ey | 3, 298 319 2,017 | 2,072 168002 =<.-2 33 eee 
Brown Manchu grain sorghum_| 328 | 603 | 1,038 | 197 789 418" |=... ce eee ee 
Red Lurghalprosos. 2) | 31 | 1,776 | 1,260 0 0 738 | 1,314 848 1, 018 
Grown on cornland: | | | 
Kanred winter wheat_.________ | 5146 | 1,224 | 1,050 | (2) | 51,938 5945): W516 [se ee 1, 076 
Peliss (durum) spring wheat __| 1584 | 210) 192} 456 792 480 360 415 407 
Converse spring wheat______-_- | 4141 | 228 | 426 | 522 912 306 582 496 491 
Kherson spring oats_________-_- | 459 AREY | GY) Ra? 1, 258 614 701 553 629 
Smyrna spring barley_--_____-_- | 2642 | 672 | 4271 360) 1, 282 854 965 760 840 
Giant iwainternny essa 30 | 969 302 (2) 734 806 920) 2===e ee 667 
Vernal spring emmer -_________- | 1524 | 306 | 118 | 2317 1, 031 2) ie ley 345 350 
! 
1 Corn, grain sorghum, and proso were usually, though not always, grown on fallow. 
2 No winter-grain plats were sown in the fall of 1918 at Akron. 
3 Average on both fallow and cornland. 
4 Pounds of shelled corn. 
5 Yield increased by surface drainage of storm water from other plats. Yields probably higher than can 
be expected over a long period. 
Winter wheat grown on fallow produced an average yield of 1,241 
pounds as compared with 1,076 pounds on cornland, a difference of 
only 165 pounds. On the average, the yields on the two soil prep- 
arations probably will be more nearly in the ratio of 3 pounds on fallow 
to 2 on cornland. The plats of Kanred on cornland were in an 
especially favored location one season, and in so short a period this 
is not equalized. 
Both durum and hard red spring wheats have produced so poorly 
on cornland that they can not be recommended; they yielded less 
than half those of winter wheat for the same years. On fallow, 
spring wheat yielded better, but can be recommended only for the 
reseeding of fields where winter wheat has failed. 
we he? 
