19-0] FIELD CROPS. 229 



28.1 bu. Tli(> hiirliest avorn^o yields of barloy in the plat tosts were secured 

 from Chevalier, wiiieh yielded an averaw of 41.4 hu. per acre for tliiee years; 

 California Feetl, 41.4 hu. for one year; and Moravian, lO.C) hu. for three years. 



Kxj)erinients were conducted also with f(»ra{ie crops ami potatoes. In a test 

 of seven strains and varieties of alfalfa in 1917-18, North Dakota 27247 stood 

 first in total yield with 5.09 tons of hay per acre for the tirst and second crop, 

 beinj? followed Ijy Australian 28753 with 5.85 tons. The percentage of leaves 

 to stems ranged from 37.1 to 40.G per cent. In 1917-18 Russian sinitlow«T 

 gave an average yield of 43,04G lbs. of silage material per acre as compared 

 witli 27,2."S lbs. for Improved Leaming corn, and (5,803 lbs. for Sudan grass. 

 Grown in drill rows about 30 in. apart and cultivated Sudan grass gave- an 

 average of 1,051 lbs. of seed per acre for the four years 1915-1918. An average 

 yit^ld o1' 549 lbs. of beans per acre for four years is recoi'ded for the California 

 Lar;;(' .Mexican I'into be;in. Of tive varieties of potatoes grown for the six 

 yeais beginning 1913, Great Divide, Burbank, and Peerless were the heaviest 

 producers, giving average yields of 241.4, 231.0, and 221.9 bu. per acre, respec- 

 tively. Of a number of varieties introduced in 1917 White Rose and Producer 

 ranked first with average yields of 429.9 and 414.4 hu. tier acre, respectively, 

 for the two years 1917-18. Pride of IMultnomuli, .Vmerican Wonder, and Jones 

 Russet stood next in the order mentioned. 



Report of experiments, Substittion No. 4, IJeauniont, Tex., H. H. Laude 

 (Teras Sta. lUtl. 258 (1919), pp. 5-20, figa. 6).— This bulletin briefly notes the 

 work of the substation and the weather conditions from 1915 to 1918, inclusive, 

 and reports the results of experiments with rice, corn, cotton, Sudan grass, 

 Jai)anese cane, and grain sorghums. 



In fertilizer experiments with rice, as shown by four years' results, cotton- 

 seed meal at the rate of 300 lbs. per acre produced the largest average increase 

 in yield, 552 lbs., while a combination of 50 lbs. of ammonium sulphate and 75 

 lbs. of acid phosphate per acre, giving only 30 lbs. of rice less, produced the 

 largest profit. The use of this combination gave an average yield as good as 

 that from 100 lbs. of ammonium sulphate alone. An application of 12,000 lbs. 

 of barnyard manure per acre prove^l least effective in increasing the yield. 

 Plowing either 5 or 8 in. deep in the fall, winter, or spring as compared with 

 plowing 2 in. deep gave increa.ses in yield more than sullicient to offset the 

 extra cost of deeper plowing. 



Five years' average lesults of sowing 60, 80, and 100 lbs. of recleaned seed 

 rice per acre showed that the SO-lb. rate produced 98 lbs. and the 100-lb. rate 

 140 lbs. of rice more per acre than was secured from the 60-lb. rate. Five-year 

 experiments in planting 1, 2, and 3 in. deep resulted slightly in favor of the 

 metliuni depth. The best yields as determined by experiments on the time of 

 seeding were obtained from seedings made from the middle of April to the 

 first part of .Tune. In each of three years nuidding in the seed gave better 

 results than tho.'^e secured from drilling into moist ground. A five-year 

 average gain of 5S5 lbs. of rice per acre was obtained through careful weed 

 control over the ordinary method of growing the crop. Earlier work on the 

 control of weeds in rice fields has been previou.sly noted (E. S. R., 41, p. 38). 

 Of a number of varieties under test T. S. No. 1583 stood up w^ell, proved of 

 extra good quality, and yielded several hundred pounds of rice more per acre 

 than were produced by the conmion varieties grown in comparison. 



Acid phosphate, cottonseed meal, and barnyard manure at the rates of 200, 

 SOO. and 12,000 lbs. per acre, respectively, were appliled scjiarately and in 

 combination to corn in 1910. Barnyard manure and acid phosiibate in combina- 

 lioii gave an increase of 10.43 bu. per acre over the check iilat, the manure 



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