12 SUDAN (1RASS.

planted, one where 11 could be Irrigated and the other without irrigation. The plai not irrigated made a good growth and proved to l>e as drought resistant as Johnson grass, 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 .",1 and gave a yield at the rate of 3.4!) tons per acre and a seed yield of at least 506 pounds per acre. The second cutting was made on October 10 and gave a yield of 3.11 tons per acre, making a total for the season of 6.60 tons per acre. At least three cuttings would have been secured had it been seeded earlier and the first cutting net allowed to seed, which would have increased the yield materially. In 1912 we put in a planting of Sudan grass March 15, without irrigation, and the yield from two cuttings was 5.66 tons per aire. Sorghum planted under the same conditions gave a yield of 4.OS tons.

Fio. 6.—Rows of Tunis grass at Arlington Farm, Virginia, 1!)12. Note the very much thinner appearance of this grass as compared with the Sudan grass in figure :5.

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, hut 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 1", it was in full head at a height of 7 feet and presented a very vigorous appearance. On August 8 the plat averaged 7 feet in height, and on account of the 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 superiority in this respect to Johnson ;:rass. Harvested August 14 for seed and gave a yield of 57 pounds of thrashed seed. A second growth, which was produced 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. 1125]