1019] FIELD CROrS. II 1 



hoping by 17 per rent, and topping by 1" per cent, this work being done <»n a 

 contract basis on the remaining farms. At Oaro growers prodnced on the 

 average 9.72 tons of beets per acre at an estimated COSt Of * 17.65; at Alms 11.1 

 tons for -*r»7.42 ; at Grand Rapids 10.16 tons for $88.05; and In northwestern 



Ohio 13.17 tons i'<>r $58.04. A yield of 8 tons or less per acre produced by 22 

 men cost $19, or $7.05 per ton, as compared with a cost of 158.18 per acre, or 

 $3.92 per ton, for a yield of 14 tons or more obtained by 26 growers. 



Labor constituted about 04 per cent of (lie total cost of producing sugar 1 is 



in the region; manure, fertilizer, and seed about 11 per cent; and insurance, 

 taxes, interest, rent, machinery charges, etc., about 25 per cent. 



Approximately 96 per cent of the growers in Michigan ft-.] the beet tops to 

 stock, while about one-half of the producers in northwestern Ohio fed the t 

 and about one-half plowed them under. 



Sugar beet seed, T. G. Palmer (New York: John Wiley «£ Sons, 1918, pp. 

 XV+120, figs. 34). — This book presents a comprehensive discussion of the his- 

 tory, development, and present status of the sugar beet seed industry, based 

 largely on information obtained during 1908 to 1911, inclusive, when the 

 author visited sugar beet seed farms In France, Germany, Holland, and Bo- 

 hemia. Seed growing in Washington, California, Utah, Idaho, and South 

 Dakota is also discussed. Statistical Information is given showing the exports 

 and the value of the sugar beet seed from Germany to various countries and 

 from Russia into Germany, and the estimated sugar beet seed requirements of 

 the world. 



A review of the results of field experiments with sugar cane in Java, 

 VII-IX, J. M. Geerts (Arch. Swkerindus. Nederland. Indie, 25 (1917), No. .}.*. 

 pp. 1637-1689, figs. 28; 26 (1918), Nos. 3, pp. 55-132, figs. 30; J,, pp. 135-1 ',',; 

 Meded. Proefstat. Java-Suikrrina'us., Landbouick. Ser., No. 16 (1917), pp. 53, figs. 

 28; No. 1 (1918). pp. 78, figs. SO; No. 2 (1918), pp. 10).— The author presents 

 preliminary observations on the most promising sugar-cane varieties, as indi- 

 cated by field tests for the year ended January 1, 1917, reports the results of 

 variety tests for the season of 1917, and reviews the results of fertilizer and 

 cultural experiments with sugar cane in connection with work previously noted 

 (E. S. R., 87, p. 426; 38, p. 516). 



[Java canes in Tucuman], A. H. ROSENFELD (Sugar [Chicago], 19 (1917), 

 Nos. 11, pp. 425-429. figs. 2; 12, pp. 472-476).— This describes variety tests with 

 Java seedling canes at the Tucuman Experiment Station, giving the results 

 obtained from the plant cane and stubble from eight crops for the period 1911 

 to 1916, inclusive. 



Average yields of cane wore obtained amounting to 76,054 kg. per hectare 

 (about 33.84 tons per acre) for Java 36; 68,880 kg. for Java 213; 63,345 kg. for 

 Java 139; and 47,534 kg. for Java 234. The average sucrose content of the 

 juice was 14.2, 13.9, 12.5, and 14.9 per cent, respectively. Native striped cane 

 used as a check produced 22,494 kg. of cane per hectare and 13.4 per cent of 

 sucrose. The four Java varieties are briefly described. 



Fall and winter planting [of sugar cane] in the Argentine. A. II. RosER- 

 feld (Sugar [Chicago], 20 (1918), No. 2. pp. 47, 48). — The author presents a 

 brief review of work begun in 1911 at the Tucum&n Experiment Station to 

 determine the best planting date for sugar cane. The maximum yields of cane 

 were obtained from plantings made between July 15 and September 15. 



A cane drainage experiment, A. 11. ROSKCTTKLD (Sugar [Chicago], 20 (1918), 

 No. 3. p. 97). — The author describes fleld tests conducted at the Tueaman Ex- 

 periment Station during 1912 and 1818 with sugar cane grown on drained ami 

 undraiued plats. 



