12 



SUDAN GRASS. 



planted, one where it could be irrijiated and the other without irrigation. The 

 plat not irrigate<l made a trood growth and proved to be as drought resistant as 

 Johnson gi-ass, although the plat was so small that the yield would not be 

 reliable. Only one cutting was secured from this planting. Both plats were 

 planted on March 31 — somewhat later than is necessary. The first cutting of 

 the irrigated plat was on July 31 and gave a yield at the rate of 3.49 tons 

 per acre and a seed yield of at least 5<)(; pounds i>er acre. The second cutting 

 was made on October 10 and gave a yield of 3.11 tons i»er acre, making a total 

 for the season of G.OO tons per acre. At least three cuttings would have been 

 secured had it been seeded earlier and the first cutting not allowed to seed, 

 which would have increased the yield materially. 



In 1912 we put in a planting of Sudan grass March l."», without irrigation, 

 and the yield from two cuttings was 5.0(5 tons per acre. Sorghum planted under 

 the same conditions gave a yield of 4.68 tons. 



Fig. 6. — Rows of Tunis grass at Arlington Farm, Virginia, l'J12. Note the very uiucli 

 thinner appearance of this grass as compared with the Sudan grass in figure :!. 



At College Station, Tex., a- test was made in 1912 by Mr. A. B. 

 Conner, who sent in the following report : 



Planted May 15 on one-fifth acre plat in rows 3 feet apart. Germination was 

 fairly good, but stand not as uniform as desirable. Grass made very vigorous 

 growth up to July 1. On July 7 was just coming into full boot. On July 15 

 it was in full head at a height of 7 feet and presented a very vigorous apiiear- 

 ance. On August S the plat averaged 7 feet in height, and on account of tlie 

 irregular stand each plant had put out a number of culms. Some were noted 

 with as many as 40 to 50. Plants were very leafy to the top, showing superi- 

 ority in this respect to Johnson grass. Harvested August 14 for seed and gave 

 a yield of 57 pounds of thrashed seed, A second growth, which was i)r(Mluced 

 without any rainfall, the season being exceptionally dry and not enough rain to 

 produce a second growth on sorghums, attained a height of above 5 feet and 

 [Cir. 125] 



