BROOM-CORN EXPERIMENTS AT WOODWARD, OKLAHOMA. 41 
hill varying from 26.8 inches in 1917 to 28.8 inches in 1918, which 
is equivalent to one plant each in hills spaced approximately 7 inches 
apart in the row. 
TABLE XVII.—Agronomic data for Acme broom corn in the combined rate-of- 
- se2ding and spacing experiments at the Woodward (Okla.) Field Station 
during the 3-year period from 1916 to 1918, inclusive. 
[Four plants in each hill; rows spaced 3.5 feet apart.] 
an co) 
Row space | Length of pe- | Percentace = Yield Ono shi] Tength of S 
(inches) riod (days) oi— & per acre brush | 
° TAR : a, (pounds). (inches). |‘ 
r a 4S os 
Year. : °8 ae 
! : na mH. SS ~ 
ls fe : Ps = ; : gro 
a MB |leelaola | 8 fot io 1g ile | al s 3 |S 
2 eee Ss Sees | See So) Bis 
Es ec fa i et ce | os | ae |e cea | ef 
1916 17.6 | 4.1 7 14 87 | 6.3 | 87.7 | 4.3 | 525 | 65 | 590 | 20.0 | 17.5 | 89.0 
sr a es aie a cc | 28. 4 6.4 71 16; 87) 9.9 | 90.2 | 4.5 | 480} 50 } 530 | 23.0 | 18.5 | 90.6 
1917 19.6 AEA OOo 20 4.0 | 94.0 | 5.3 | 469 25 | 494 | 15.5 | 12.0 | 94.9 
ee ide ae SS oe ee | 26585)" 655 95 21} 116) 3.5 |} 96.7 | 5.0 | 372 72 | 444 | 16.5 | 13.5 | 83.8 
1918 \f19.1 | 18.9 77 20 | 97 1.6 | 75.3 | 3.8 | 256 38 | 294 |} 15.5 | 10.5 Yo 
Seo ge io ee | 28.8 | 28.4 7 22 = Oi 1.3 | 85.3 | 3.5 | 242 29 | 271 | 18.0 | 12.5 | 89.5 
- The reaction of the crop to this method of grouping the plants 
appears to be about the same as to the other methods previously con- 
sidered with regard to the vegetative, fruiting, and total growing 
periods. A small percentage of suckers was produced at both rates 
each year, but the average percentage in either rate is much smaller 
than that of the corresponding rates with single plants in each hill; 
at the thinner rate a higher percentage of headed stalks was pro- 
duced each year than at the thick rate, but the highest yield of both 
good brush and total brush was obtained ‘at the thick rate in all 
three years. The thinner rate produced the longest average length 
of brush each year. The annual and 3-year average acre yields are 
shown in Table XVIII, where comparisons are readily made between 
these two rates, and these same data are shown again in Table XXT, 
where comparisons with other methods of spacing are made. 
TaBLe XVIII.—Annual and average acre yields of Acme broom corn in the com- 
bined rate-of-seeding and spacing experiments at the Woodward (Okla.) 
Field Station during the 3-year period from 1916 to 1918, inclusive. 
[Four plants in each hill; rows spaced 3.5 feet apart. | 
Annual ecre yields (pounds). : 
Average yields 
jor ene 3 years 
ae * 2 -1916 to 1918. 
Distance between hills. 1916 1917 1918 
Good. | Poor. | Good. | Poor. | Good. | Poor. | Good. | Poor, 
17.6 to 19.6 inches......-..------- 525 65. 469 25 | 256 38 417 49 
2655, LO2e:SdHICHes 2 5. 2... 480 50 372 72 | 242 29 365 50 
