62 BULLETIN 1301, U. S. DEPARTMENT OF AGRICULTURE 
In Table 23 are shown the yields of millet from drilled plats, as 
compared with Dakota Amber sorgo and Sudan grass seeded in the 
same manner. The Golden (German) millet has produced the high- 
est yield. It was very late, however, and the hay was very coarse. 
The Dakota Kursk and the Siberian varieties make better hay and 
are earlier than the Golden. The broomcorn, or hog millet (proso), 
produced the lowest yields, and the hay was inferior. Sorgo sown in: 
drills made the highest yield, and the hay was of good quality. 
SORGHUMS AND CORN 
A number of varieties of sorghum have been grown in rows for 
comparison with corn. This area is too far north for sorghums to: 
produce to the best advantage. The highest average yield of sor- 
ehum at Mandan has been but shghtly higher than the lowest average: 
yield at Ardmore, S. Dak. 
The sorghums were planted at the rate of approximately $8 pounds 
per acre in rows 42 or 44 inches apart. They were on spring-plowed 
ground after small grain, except in 1914 and 1915, when they were 
on native sod broken the previous season. Sorghum varieties were 
not planted in 1921. 
Table 24 shows the yields of sorghum varieties, corn, and Sudan 
grass. The highest yield per acre was produced by Red Amber 
sorgo, and the lowest yields by Sudan grass, feterita, and kaoliang. 
Red Amber sorgo usually does not mature at Mandan, although it 
makes very good fodder. Its feeding value would no doubt be ex- 
ceeded. by corn, which produces fewer tons per acre. Dakota Amber 
sorgo is a very early variety and can usually be depended upon to 
mature seed. It is, no doubt, the best forage sorghum for this area. 
Sudan grass makes excellent hay, but its vield has been so low that it 
does not compare favorably with the other crops. A few acres of 
sorgo on a farm provides a valuable variety in the forage. Sorgo is 
readily eaten by stock, especially horses. 
TaBLE 24.—Yields of sorghum, corn, and Sudan grass (grown in rows) at the North- 
ern Great Plains Field Station during the 9-year period, 1914-1922, inclusive 
| 
Yields per acre (pounds) 
Crop and variety | | | | Aver- 
| 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 19211 1922 | a8e for 
| | grown 
Sorghum: | | | 
Dakota Ambers2222222.28 5, 680 | 2,700 | 4,880} 1,410 | 3,300 | 3,085 | 2,660 | 4,850 | 3, 105 | 3, 519: 
Minnesota Amber-_-_--_--- 6, 370 | 1,830 | 4,160 | 3,220 | 4,240 | 4,115 | 2,950 |_______ | 6,345 | 4, 154 
RedsAum bers aes see nee 7,040 | 3,760 | 7,430 | 3,100 | 4,240 | 4,880 | 2,080 |______- | 6,705 | 4, 898 
TRGYOV Ue avers see iN Ee ne ee Sa 2,160 | 4,410 | 2,700 | 2,330 |______- DSA Sl ape ee res 2, 669 
etenita seer teem 0 erage 2a) eer r ea 27180)) 3; GSOR mi GIOe 2a OGOR 3 (1 of Baers eee |Seeaenes | 2, 809 
Corn: Northwestern Dent_-__| 4,210 | 4,070 | 4,770 | 3, 760 | 4,300 | 2,560 | 2,000 | 3,050 | 5, 130 | 3, 761 
SUT GL ATI TAS S cea oe ee ea | 3, 215 | 1, 830 | 4,180] 1,460 | 4,950} 2,560 | 1,110 |_______ 3,645 | 2, 869 
1 Yields from Dakota Amber sorgo and corn on spring plowing in rotation plats. 
2 Very low stand; yield not included in average. 
SILAGE CROPS 
Corn, sunflowers, and sorgos have been grown in a silage test for 
two years. Sorgo has produced the highest silage weight per acre. 
Both corn and sorgo have exceeded sunflowers in weight of dry 
matter per acre. Corn usually produces enough ears in this section 
