THICK SEEDING OF MILO IN THE SAN A.NTONIO REGION. 
EFFECT OF DIFFERENT SPACINGS WITHIN THE ROW. 
Iii six plate on which milo was planted in rows l feel apart in MM:; 
the plants were thinned to 18, L2, 8, 5, and 2 inches, respectively, 
within the row, one plat being left unthinned as a check. Ail the 
plats wore one-tenth of an acre in size except the one on which the 
plants were thinned to 5 inches; this plat contained one-fifth of an 
acre. The results of this test are given in Table III. The "perfect 
stand" has been calculated as the number of plants which each row 
would have contained if the stand had been perfect. The actual 
stand stated was the average number of plants per row as estimated 
by counting the plants in one representative row in each plat. The 
number of heads was obtained by actual count, using the same rows 
that were used in determining the stand. 
Table III. — Results of thinning milo plants to different distances within the rows, which 
were A feet apart and 264 feet long, at the San Antonio Experiment Farm in 19 IS and 
1914. 
Perfect stand. 
Actual 
spac- 
ing. 
Stand (plants 
per row.) 
Number of ma- 
ture heads * — 
Average 
number 
of 
branches 
plant. 2 
Heads 
pend- 
ent. 2 
Aver- 
age 
height 
of 
plants. 
Yield 
per 
Per- 
fect. 
Actual. 
Per 
row. 
Per 
plant. 
acre. 
In 1913: 
IS inches apart 
Inches. 
20.2 
13.3 
10.5 
7.2 
3.8 
3.5 
24.5 
17.7 
12.7 
9.8 
6.3 
3.5 
2.3 
176 
264 
398 
634 
1,584 
132 
176 
264 
398 
634 
1,584 
157 
237 
293 
439 
833 
895 
129 
179 
254 
324 
504 
902 
1.364 
814 
1.034 
1,066 
1,155 
1,209 
1,169 
393 
445 
375 
398 
541 
936 
1.415 
5.2 
Per ct. 
Bushel*. 
42.5 
12 inches apart 
4.3 
3.6 
2.6 
1.5 
1.3 
3.04 
2.48 
1.48 
1.23 
1.07 
1.04 
1.04 
42.1 
43.8 
46.2 
2 inches apart 
46.4 
46.4 
In 1914: 
24 inches apart 
3.44 
3.31 
2.64 
2.02 
.51 
.41 
.31 
4.5 
32 
31 
5 
.6 
4.8 
5.1 
5.5 
.5. 7 
5.9 
• 
7.3 
1.2 
18 inches apart 
12 inches apart 
8 inches apart 
3.6 
6.6 
11.8 
5 inches apart 
16.1 
18.2 
Not thinner! 
21.8 
1 Includes tillers and main stalks. 
2 Based on the counts from one row only. All other results are the average of four rows. 
The most important fact shown in Table III is that the number of 
heads per plant decreased consistently as the spacing within the row- 
decreased. The average number of heads per plant in the 18-inch 
spacing was 5.2, while in the 2-inch spacing it was only 1.5, a decrease 
of 3.7 heads per plant. The yield, however, increased slightly as 
the plants were crowded within the row; that is, the thicker stands 
produced the higher yields. 
The results of the tests made in 1914 are essentially a duplicate of 
those in 1913, an extra plat being added in w T hich the plants were 
thinned to 24 inches in the row. All the plats used in 1914 were 
one-twentieth of an acre in extent, except the one thinned to 5 
inches between plants, which was one-tenth of an acre. Additional 
columns show the average number of branches, the percentage of 
pendent heads, and the average height of the plants. 
