GRAIN-SORGHUM EXPERIMENTS IX OKLAHOMA. 65 
Date-of-seeding experiments with Dwarf Yellow milo and Sunrise 
kafir have been conducted for five years, 1917 to 1921, inclusive. 
The two varieties have been seeded each year on six different dates, 
representing the middle of April, the first and middle of May, the 
first and middle of June, and the first of July. 
The 5-year average yields indicate that Dwarf Yellow milo should 
be seeded in June. The mid-June seeding made the highest average 
yield, 33.4 bushels per acre; the June 1 seeding ranked second, 
with 29.1 bushels: and that made on July 1 third with 28.6 bushels 
per acre. The mid-May seeding averaged 22.7 bushels per acre. 
Sunrise kafir made its highest average yield from the mid-May 
seeding, with 27 bushels per acre, the June 1 seeding ranking second 
with an average of 24.7 bushels per acre. 
Dawn kafir, feterita, and Blackhull kaoliang have been included 
in the date-of-seeding experiments for the three years 1919 to 1921, 
inclusive. 
The date-of-seeding experiments show that Dwarf milo seeded at 
the proper date will outyield Sunrise kafir when seeded at its best 
date. The date on which the varietal experiments were seeded has 
been about the middle of May, except in 1915. This date of seeding 
has proved to be the best time for seeding Sunrise kafir, but is about 
one month too early for maximum yields of Dwarf Yellow milo. 
This accounts for the relatively low yields of the milos in the varietal 
experiments when compared with Sunrise and Dawn kafirs. 
Spacing experiments have been conducted with Dwarf Yellow milo 
and Sunrise kafir for five years, 1917 to 1921, inclusive. Dwarf 
yellow milo in rows spaced 44 inches apart made the highest average 
yield, 27.9 bushels per acre, with 24 inches of row space to the plant. 
In rows 30Hnch.es apart, the highest average yield, 26.4 bushels per 
acre, was made by plants spaced 12 inches apart in the row. 
With the Dwarf Yellow milo. the rows 88 inches apart with 6.6 
inches between plants outyielded the corresponding rate, 13 inches 
between plants in rows 44 inches apart, by an annual average of 
1.5 bushels per acre. In the other four rates the 44-inch rows out- 
yielded the 88-inch rows in the 5-year average. 
Sunrise kafir produced the highest average yield, 27.6 bushels, from 
plats with 12 inches of row space to the plant in 44-inch rows. With 
rows 88 inches apart the highest average vield for the five years was 
23.5 bushels from plants 6 inches apart. Sunrise kafir, in wide-spaced 
rows, 88 inches apart, does not yield as much grain or total crop as 
in rows 44 inches apart. 
