540 EXPERIMENT STATION RECORD. [Tol. 37 



beets per hectare, the weight of the entire plant, the weight of the roots, the 

 yield of sucrose, the amount of sugar produced per week per hectare, and the 

 amount of sugar produced per root per week. Some notes are also given on the 

 reducing sugars present in sugar beets. 



The present status of the sugar-beet seed industry in the United States, 

 C. O. TowNSEND (U. B. Dept. Agr. Yearbook 1916, pp. 399-^10, pis. 5).— The im- 

 portance and possibilities of developing an American beet-seed industry capa- 

 ble of meeting the requirements of American sugar-beet growers are outlined 

 and discussed, and cultural methods are described. The necessity for estab- 

 lishing uniform and fixed types is emphasized. 



The present status of the sugar-beet seed industry in the United States, 

 C. O. TowNSEND (Sugar [Chicago], 19 {1911), No. 5, pp. 176-180, figs. 6).— This 

 is a reprint of the above. 



[Experimental work with sugar cane], H. T. Eastekby {Ann. Rpt. Bur. 

 Sugar Expt. Stag. [Queensland], 16 {1916), pp. 34)- — Work with sugar cane at 

 numerous experimental centers in Queensland, in continuation of that pre- 

 viously noted (E. S. R., 35, p. 230) is reported. 



Sweet clover: Growing the crop, H. S. Coe (C7. S. Dept. Agr., Farmers' Bui. 

 797 {1917), pp. 34, figs- 11)- — The field practices and cultural methods employed 

 in the production of sweet clover are discussed in some detail. 



Tests of 237 samples of hulled seed gave an average of 58.25 per cent 

 germination, with 18.7 per cent of hard seed, as compared with an average 

 of 11.8 per cent germination and 70.9 per cent hard seed for 45 unhulled 

 samples. A further comparison of 22 samples each of southern and northern 

 grown seed and of 28 samples of imported seed gave an average germination 

 of 14, 37, and 56 per cent, respectively, with 60, 43, and 12 per cent of hard 

 seed. 



Means for the eradication of sweet clover are briefly outlined. 



Timothy fertilization and culture, N. Schmitz {Maryland Sta. Bui. 202 

 (1917), pp. 159-17S, figs. 3). — Fertilizing experiments with timothy begun in 

 1911, employing different commercial fertilizers as top-dressings, are reported 

 and discussed, and field practices and cultural methods i« timothy produc- 

 tion deemed best for Maryland conditions outlined. 



The fertilizer tests included a comparison of the effects of different fertilizers 

 used alone and ia various combinations; of different nitrogen carriers; of 

 nitrate of soda, acid phosphate, and basic slag; of different rates and numbers 

 of applications; and of spring versus fall applications. 



The highest average yield of the 1912, 1913. and 1914 crops was secured 

 from an application of 250 lbs. each of nitrate of soda and acid phosphate 

 and 100 lbs. of muriate of pota.'^li, and amounted to 2.86 tons of hay per acre, 

 an increase of 1.66 tons over the untreatetl checks. The lowest increases in 

 yield, considered to be within the limits of experimental error, were secured 

 from applications of basic slag and acid phosphate used alone. 



An average yield of 2.34 tons was secured from a 300-lb. application of 

 ammonium sulphate during 1913 and 1914 as compared with a yield of 1.49 

 tons from a similar application of dried blood. The gain over the untreated 

 checks amounted to 0.98 and 0.13 ton, respectively. Nitrate of soda and nitrate 

 of potash showed average yields of 2.21 tons each, a gain of 0.85 ton per 

 acre. In a comparison of nitrate of soda, calcium cyanamid, and alpha tank- 

 age, the average yields for 1912 and 1913 were 2.71, 2.13, and 1.73 tons, 

 respectively, which represented gains of 1.2, 0.62, and 0.22 tons per acre. 



A summary of the data relative to the yields and net profits of nitrate of 

 soda used alone, acid phosphate and nitrate of soda, and basic slag and nitrate 

 •f soda show that the average increase in yield amounted to 1.2, 1.35, and 



