) 
SUDAN GRASS AND RELATED PLANTS. 33 
first, fifth, and ninth holes may be used to sow three 28-inch rows. 
Rows 36 to 48 inches apart are better suited to the corn planter. The 
planter may also be used to sow 18-inch to 24-inch rows by straddling, 
but this is slower and does not space the rows as uniformly as the drill. 
The lister is best adapted to rows 40 or 42 inches apart. One may 
use either a single-row lister, requiring three or four horses, or a 2-row 
lister with six or eight horses. 
RATE OF SEEDING. 
IN DRILLED OR BROADCASTED SEEDINGS. 
Rates varying from 10 to 40 pounds per acre have been tested for 
from one to four years at 24 widely distributed points. Table V 
presents the yield reported to the Office of Forage-Crop Investiga- 
tions from these stations. 
TaBLE V.— Yvelds of cured hay from different rates of seeding broadcast or in close drills. 
Plats Hay yields when seeded at following 
5 rates per acre. 
Location of test. x eats of , 
Rees Nine mest 15 20. |25to030| 35 to 40 
Oa ienane pounds.|pounds. |pounds.|pounds.| pounds. 
Humid regions: | Acres. Tons. | Tons. | Tons. | Tons. | Tons. 
PATE OS pn GO eee een ce nee ev EO Ee Eh ja Tae Pee 0. 42 0.91 1030) 2 eee 5% 
Agricultural College, Miss. .| 1913......... 0. 05 Des ant ah 1. 93 2.06 2.45 2. 50 
DORR ee ee ee LOLS eee .10 2 Bh 4.09 4.34 4.22 3. 56 
Baton Rouge, La.......... LOLS Resear 05 Pa ae Bee G 2. 05 1.73 OPV Gocoeeoe 
Beeville; Mexc soars see TUS 8 as ae a [ee Dil eee ees 4. 84 4.84 5. 03 5.01 
Blacksburg, Va............ 1913t01917..| .05 Ol ae Moana 1.46 1.62 1.58 2.00 
College Park, Md.......... 1912 to 1915.. .05 2a beri vevee Ouoe, 3.33 3.41 3. 62 
Fayetteville, Ark.......... 1913 eee .10 Pca ents Bhs 1.12 . 87 .95 . 88 
Jackson, Tenn............. LOWS FOMOVS se eee eee 1 2532 1.90 2.14 1.97 2.01 
Knoxville, Tenn....._..... WIE cn oese. 1025 Ohl ine 2.94| 3.26] 3.29] 2.69 
Lexington, Kv.2........... LOW a eR Si | ean ne ne 1 GEMM essay aes 7.95 Chtcy Ioooade oo 
Lincoln, Nebr............-. 1915 to 1917. . .05 DAL Teese ennes S540 Meera 3.30 3. 60 
Madison, Wis.............. LOUD eee . 025 2 Be By/ 3.24 3.11 3.06 2.42 
Shin Lepple M yeabol se Hoe eo ene Veh ars sarees .015 Diilele ee 4.25 3.97 4. 28 4.05 
SYST ERLE ea ee lho Gael EE pa Men A NOES RAO ae a ee 2.91 2.95 3.02 2. 87 
Dry regions (not irrigated): | 
ee avisa@alitasase ee ae 1913 t0 1915.. -05 lor2 5. 04 4.99 4,31 3. 91 4.37 
Amarillo. ext £5. spose 5. 1914+01917.. - 05 2 2.30 25s) 2518 249 Ee ee 
Chillicothe, Tex............ 1913t01919.. 05 2 1.94 2. 28 2. 24 2523 DAS 
Lubbock, Tex............. LOLS COOGEE Nae noel OL 3018) 49243 |. 3a0lnan outs 
IP GCOS SL OXr seen eee GS ge ee eee ee ey pal eee oa 1.25 1.89 2.20 2. 58 
SPUD pLexa ie ee esa. Te eee Lee ie oe Da lee US 5.14 5. 02 5.02 5. 04 
ay cian Semcon es 1913 to 1918. - 05 2 2.48 2.50 | 2.43 2.40 2.45 
Tribune, Kanseoi5. see. 1914and 1915 . 02 2 3. 62 4.22 3.95 3. 28 2.81 
Redfield, S. Dak..........-. 1916 to 1919.. . 04 2, 2. 53 2.58 | 2.49 PIT) Cal iee Bae 
PANY CLAS Oalprieap sci eb tee) eH NU Meade eC yee tM lenny Spates ate rere in |EN A, Team BOTs Buoys 3.19 3. 22 
Dry regions (irrigated): | 
Bard) Califac: . 5-22 sc) 329252 1914and 1915 05 2 2. 66 3.02 | 2.68 3.02 2.76 
Dawas (ality yen cce coe esiee 1914 to 1916. . . 05 1 8. 02 6.74 7.28 5.90 6.16 
FOOSE OI aa 2 EO Be 8a Rp yh ese etd te tal [hea | 5.34 | 4.88) 4.98] 4.46 4. 46 
_ | Only the stations where data are presented for all rates of seeding of 15 pounds or more are included 
in the averages. 
The yields reported in Table V, as in the width-of-row tests, show 
no decided superiority for any rate of seeding. Sudan grass tillers 
so freely in thin stands that the final number of stems per square 
53321°—21—Bull. 981 | 
5 
