44 
BULLETIN 1175, U. S. DEPARTMENT OF AGRICULTURE. 
for the 5 years. It is to be noted that during the last 16 days of 
July and the first 5 days of August the rainfall has been very low. 
this period also being marked by high average temperature. The 
critical period of milo seeded during May falls in this dry period, as 
does the latter part of the critical period of the April 15 seeding. 
The plat seeded on June 1 makes boot about the time the August 
rains start. Under average conditions it is seen that milo sown on 
the mid-June date reaches its critical stage about the middle of 
August, when, on the average, rains have occurred. The plat sown 
on July 1 is frequently immature at the time of the first killing frost, 
hence its yield i> decreased. The conditions described are average for 
the 5-year period from 1917 to 1921, the period during which these 
date-of"-seeding experiments have been conducted. For this period 
the highest average yield, 33.4 bushels, was produced from the June 
15 seeding, the June 1 and July 1 seedings ranking next with 29.1 
and 28.6 bushels, respectively. Yields of the total crop vary con- 
sistently with the yields of grain. 
SUNRISE KAFIR. 
AS*/ 
^J27 
/ 
'£^JW 
(i us h 
:afir in the date-of- 
and the annual and 
average grain yields 
for the different 
dates are summa- 
rized in Table 21. 
The same difficulty 
has been experienced 
in obtaining stands 
of Sunrise kafir from 
the earlier dates of 
seeding as with 
Dwarf Yellow milo. 
In 1918 the stand 
from the April 15 
seeding was very 
poor and was so thin 
that suckering could 
not overcome the 
difference. In other 
years the stands 
have been fairly 
c mparable for the different dates. The desired stand for Sunrise 
kafir was one plant for each 12 inches of row space, and under these 
conditions suckering has been rather extensive. 
The total growing period for Sunrise kafir has averaged longer 
than that for Dwarf Yellow milo. The longest period has been 
required by the earlier dates. The shortest total growing period for 
Sunrise kafir has been that for the June 1 seeding, 110 days, the same 
as that for Dwarf Yellow milo seeded on the same date. The June 15 
seeding has required a longer period in which to mature than that of 
June 1, while the July 1 seeding has been caught by frost in two 
of the five }'ears and its growing period has been shortened thereby, as 
the crop was not fully matured. Figure 13 represents the average 
length of the total growing period required by Sunrise kafir sown 
oiVtlie different dates in the five years. 
The agronomic data recorded for Sunrise 
seeding experiments are presented in Table 17 
iSO 
k 
>/<?o 
I 
I . 
r° 
woo 
t 
X 
\ APft/L/5 MfiY/ M/9Y/5 JUNE/ JUNE/5 <JULY/ 
Z?/?T£S &£££>££> 
Fig. 13. — Diagram showing average number of days from seeding to 
ripaning f>r Sunrise kafir sown on different dates in the dat3-of- 
it during the 5-year period frcm 1917 to 1921, 
inclusive. 
