24 BULLETIN 981, U. S. DEPARTMENT OF AGRICULTURE. 
erowth to afford appreciable pasturage. These facts indicate a wider 
utilization of Sudan grass as a catch crop in the future. 
TaBLe I1.—Comparative yields of Sudan grass, millet, and sorgo, seeded broadcast or 
in close drills. ‘. 
_ Yields of cured hay per acre 
Plats. | (tons). 
Location of test. u Bg | 
Size Replica- | Sudan : 
(acres). tions. grass. Millet. Sorgo. 
Southern Great Plains: 
Bice Spring exes: co 8 es oe so 25 _ 1916 to 1919../0.10 to 3.0 1to4 2. 54 1.23 4, 85 
SanbAmtonion Mex ces 2 2 ae. ae A912 FO1OI GES) auc 2 80g | ees esacee §. 35 
Ghillicothey mex: 29-25-22 3-55- 8 | 1913 to 1918... - 05 2 2. 04 94 3.00 
Hp D Docks exes )-- sean eee el OVA an GielO15) aera a Sees en 3..81 3. 33 4.88 
WAWwiOns OKklas eran ee eee | 1917 to 1919.. - 10 1to2 QAO Se eee 4,14 
PCCP OMS ean. S cca nee os | renee. senmee Baer eee 6 ama aie 3.33 1.83 4.64 
Central Great Plains: 
Amarillo, Tex......-..---+-. [ot MAOI2 to ASL Tes .05 2 1.65 1,44 2.70 
Dalian eRe scr es ee | 1917 to 1919... . 10 1to2 1. 66 . 46 2. 08 
MICHIMNGATIEIN SWVLOXe = 1 1913 to 1917.-. -10 1 1. 33 .93 2.70 
Woodward, Okla... 03: Jee) | 1914, ae to | .04to.10 1to2 1.70 1.34 3.77 
| 1919, 
GardemCity, Kans:.5-2: sake 1O12F oe eee 05 2 1.69 2. 23 3.25 
ay Sans 3: seas pean | 1914 to 1919... - 05 2 2.12, 2.18 3. 66 
Akron; COlLO= deamich 2 ese cco eee: | 1915 to 1919.. - 05 3 1.69 2.01 2.10 
Nveragor: tse Ok Sal eee A Ai 2 se eae see ore S| a we Ee? 1.78 1.51 2. 89 
Northern Great Plains: | 
IA cher GWiy 0-450 ceo ee | 1914 to 1915.. .10 1 82 1.61 1.41 
Sheridany wwiyO-e ss. see eee eee | 1917 to 1919... 05 3 . 67 son, pay 
Ardmore) Subak-c oe. epee 1915 to 1916, - 10 3 2. 04 2. 04 3. 05 
| 1918, 1919 
NowellsseiDaleys.. js: 2p ee oes 1915 to 1918... 05 3 1. 40 2. 09 | 2. 33 
Redheldes sDake a sescse pees: | 1915 to 1919.. . 04 2 3. 34 3.18 4.15 
Mandani Ne Daker 2 ooo eee | 1915 to 1919... . 05 3 1. 40 2. 09 2.39 
Moccasin y Mont ae 8e.s- pases 1915, 1916... . 05 2 74 1.62 1.05 
ASV OTE GC 2. 2. Poeee S52 cece se Be ee ee ee | ee ere oe Bee ees 1, 49 1. 89 2. 24 
Timothy and clover region: 
Mamniha tanita ees assess WARS. bet Oy is ee I ee ee secce Wome wesc 4,02 2. 81 3.99 
ihincolnssNebreeessss see eee | 1915 to 1917... 05 2 3. 60 3. 40 5. 50 
Madisony WiSses=2222s5-652 eee (1916 sees . 025 2 2.79 3:08: \usseeeee 
Jackson, Tenne:: . 32205 i esee ne ee | Oars sac | eee 2 2. 21 Sif be Bree Pests 
Knoxville | Menns eee ss sae ee 1914, 1915, . 02 2 3. 08 213s | Seen eee 
and 1917. 
WioosterObiosessteee see ere 1912 TOAOISS2 cn sas ee eece weweeeeeee 3. 70 3. 70 8. 30 
iNew London; Ohio? = i222 2-2 a-- 1912, 1913...- - 05 2 1. 29 2. O27 eee eee 
TCHACA SINGS ase eee ete ties LON Se eee . 012 3 Sie dP rea 
Svate Colleces Paleo s-ssees TOUS AQT he Slee he ne |e eee 2. 64 7 ka |e ees SoS 
IBlackSbures Viasseeaeeee alee ee LOND ey eee . 02 2 5:00) [23 eee 6. 43 
Co ere ree oa Ce Sag a OU a cere - 02 8 1.69 | DESO Sees ete 
Aprerage.. 20 wih eck oe cot Ae Sire al Gia ee Sa aloes ees 2280 me siae 6. 06 
The acreage of millet has been on. the decline since 1899 (24, p. 5), 
and except in the irrigated regions of the Southwest any increase in 
the acreage of Sudan grass will mean a further decrease in the millet 
acreage. On the other hand, there has been a steady growth in tie | 
acreage of forage sorghums, which are likely to continue to be the 
chief competitors of Sudan grass as emergency hay crops. 
USE IN ROTATIONS. 
Although Sudan grass is an annual and therefore can be introduced 
easily into any rotation, its extensive use as a staple crop in regular 
rotations is not to be expected. ‘To fill such a position, the crop 
