SHERIDAN FIELD STATTOX, 1917 TO 1923 
25 
drilled seeding yielded the better. The yield of sweet cloyer seeded 
with a nurse crop approached that seeded alone in only one year of 
the four in which a crop was produced. It has been observed in 
other experiments that sweet clover seeded in the stubble without 
plowing has been as productive as that seeded on plowed ground. 
Table 21. — Annual and average yields of sweet-clover hay in variety and method- 
of-seeding tests at the Sheridan Field Station for the six years from 1918 to 1923y 
inclusive 
Variety and method of seeding 
Yields per acre (pounds) 
1918 
1919 
1920 
1921 
1922 
1923 Average 
White: 
35-inch rows 
7,000 
5,420 
1,680 
2,100 
2,200 
800 



1,200 
560 
166 
1,570 
865 





1 
1 
2,570 2,145 
7-inch drill 
2,630 1,802 
2,490 856 
Yellow: 
3,720 
7-inch drill 
4,680 
As shown in Table 21, yellow sweet clover {Melilotus officinalis) 
outyielded the white species in the years grown. It also produced 
the best quality of hay. 
SORGHUM 
The variety tests of sorghums included four varieties for the 7- 
year period from 1917 to 1923. Minnesota Amber was added in 
1922. Table 22 shows the yields for each year and averages for the 
7-year period. Ked Amber leads with an average of 4,173 pounds 
of field-cured forage for the seven years. Dakota Amber averaged 
next best, 3,374 pounds per acre, but yielded best throughout the 
period from 1917 to 1921. Dakota Amber ripened seed almost every 
year that a crop was produced, but Red Amber ripened seed only in 
the longer seasons. Minnesota Amber produced next to Red Amber 
in 1922 and 1923 and ripened earlier. Considering the results for 
the full period that this test has been run, Dakota Amber appears to 
be the most dependable variety for all types of seasons. Red Amber 
and Minnesota Amber are heavier growing varieties and yielded 
much more in 1922 and 1923. In both years, however, there was more 
than the usual supply of moisture during the latter part of the season. 
Minnesota Amber was grown only in those two years, and its capacity 
for withstanding drought has not been tested at this station. 
Table 22. — Annual and average yields of forage from sorghums in variety tests at 
the Sheridan Field Station for the seven years from 1917 to 1923, inclusive 
Serial 
No. 
Yields per acre (pounds) 
Variety 
1917 
1918 
1919 
1920 
1 
1921 
1922 
1923 
Aver- 
age 
Dakota Amber 
1105 
1162 
1174 
1181 
2 7038 
3,000 
2,500 
2,540 
2,060 
4,740 
4,340 
4,660 
3,060 




4,230 
3,270 
3,370 
3,000 
! 
1,050 1 
1,050 1 
870 1 
450 1 
5,580 
5,330 
9,900 
5,780 
7,920 
5,020 
6,030 
7,870 
6,480 
7,580 
3,374 
Freed 
3.217 
Red Amber... 
4,173 
White milo 
2 976 
Minnesota Amber 
1 
1 Number assigned by the oflBce of New and Rare Seed Distribution 
' Number assigned by the oflBce of Forage-Crop Investigations. 
