8 SUDAN GBASS.

This yield IS at the rate of 4.4 tons per acre. During this period the rainfall was as follows: Inches. April 2<; to 30 0. us May .52 June ___: .. 4.69 July 1. 39 August :;. 35 September __ 'i. 92 October 1 to 14 1.97 Total 15. 52 Two acres were also planted on April 20 in rows 3<> inches apart. This crop grew to an average height of C feet 4 inches and was harvested for seed on August 3, 96 days after planting. It was a little overripe and probably 10 per cent of the seed was lost by shattering. The actual seed saved from the 2 acres was 70S pounds. By September 20 the grass was again about 18 inches high and beginning to head, when it was cut for hay in order to plow the ground. The yield was estimated at about 1,000 pounds per acre, but it was not weighed, owing to rainy weather.

Two fields of Sudan grass were grown for seed under contract with two farmers in the immediate neighborhood of Chillicothe. One farmer planted 12 pounds of seed on 13 acres in 42-inch rows and secured a yield of about 10 bushels per acre. The second farmer planted 4 pounds of seed on 2 acres in 42-inch rows and harvested 1,285 pounds of clean seed, or 15.3 bushels per acre. The seed grown on the experiment farm weighed 40 pounds to the bushel; that grown by the first-mentioned farmer. 44 pounds, and by the second, 42 pounds per bushel. In contrast the seed grown on the experiment farm in 1911 weighed but 32 pounds per bushel.

RESULTS OF TESTS AT ARLINGTON FARM.

At Arlington Farm, Virginia, Sudan grass was tested in 1912, both broadcasted and in 18-inch rows (figs. 2. 3. and 4). The broadcasted plats were sown on June 3 at the rate of 10 pounds of seed to the acre. The broadcasted stand was not perfect, .some comparatively sterile spots being almost bare of Sudan grass and occupied by pigeon grass. The crop in these plats grew to an average height of 5 feet. One twentieth-acre plat cut for hay on Augusi _'•"> yielded 280 pounds, or at the rate of 2.8 tons per acre. The second growth on this plat was 30 inches high and was beginning to head on September 20. This grew to a height of about 3 feet, but tin 1 seed was not mature when killed by frost on November 4. Nine plats of one-twentieth of an acre each were cut for seed on September 20 and yielded, on the [Cir. 125]