1910] FIELD < HOPS. 633 



Selections from Kedilde wit grown during the rainy season and strains 

 from Ami grown daring the dry season have produced the bighesl yields. 

 Bead obtained from a rainy season culture of Kciiii.ic wit and grown during 



the dry season resulted In a lower yield than that obtained during the rainy 

 Beason. Methods of growing the crop In the Philippines are described. 



Sugar beet production in Utah, F. S. Harris and X. I. Butt (Utah Stu. 

 cin: 34 (1<J18), pp. 3-28, figs. 15).— Cultural methods and Held practices em- 

 ployed In growing ami harvesting the crop in the state are described) and 

 Insert pests and diseases affecting sugar beets in Utah briefly discussed. Cer- 

 tain economic phases of the Industry in relation to the community are also in- 

 dicated. 



Report on the sugar-cane experiments for the season, 1916-1918, J. P. 

 d'Alhuqukkcjik and J. K. Bovku. {Barbados Dept. Agr., i>i>t. Sugar-Carve Expt$., 

 1916-1918, pp. 83). — Fertilizer and variety tests with sugar cane in Barbados 

 are reported on as heretofore (E. S. R., 39. p. 742). 



The results of the fertilizer experiments were again rendered valueless by 

 the presence on the fertilizer plats of large numbers of the root borer (Din- 

 prepes abbreviatus) and the brown hard-back {Phy talus smithi) which at- 

 tacked the canes to a considerable extent. 



Tabulated data are presented showing the yields of the principal plant and 

 first and second ratoon canes grown on numerous plantations throughout the 

 island as compared with White Transparent, the standard variety. Addi- 

 tional information is given relative to selected varieties, artificial and natural 

 hybrids, and seedling canes tested during the period indicated. 



The leading plant canes were Ba. G032 and B. H. 10 (12), with average 

 yields on the black soils of 28.51 and 28.2 tons of cane per acre, respectively, 

 as compared with 24.15 tons from White Transparent. On the red soils the 

 respective yields were 32.09, 31, and 1G.97 tons. The highest yielding varieties of 

 tbe first ratoon canes were B. G308, with an average yield of 25.16 tons of 

 cane per acre on black soil, and Ba. 6032 with 26.5 tons on red soil. White 

 Transparent produced 14.7 and 13.74 tons of cane per acre on black and red 

 soils, respectively. B. 6450 was the highest yielding second ratoon cane grown 

 on red soil, with an average of 20.13 tons per acre, as compared with 15.77 

 tons from White Transparent. 



Sugar cane manurial experiments in [British Guiana], J. B. Harrison and 

 R. Ward (Jour. Bd. Agr. Brit. Guiana, 11 (1918), Xo. 4, pp. 185-143).— This re- 

 ports the results of work done during 1917, similar to that previously noted 

 (E. S. R., 40. p. 241). 



The average yield of 13 varieties of sugar cane receiving no nitrogen and 

 applications of sulphate of ammonia at the rate of 40 and GO lbs. of nitrogen 

 per acre amounted to 22.4, 30.2, and 30 tons of cane per acre, respectively. 

 Applications of superphosphate resulted in an average increase of 1.7 tons of 

 cane per acre without nitrogen and of -1.1 tons with nitrogen. The use of rice 

 straw at the rate of 25,000 lbs. per acre as a mulch for sugar cane resulted 

 in an average yield for three varieties of 34.G tons of cane per acre as com- 

 pared with 31.8 tons without the mulch. Without riee straw these same va- 

 rieties gave average yields of 24.4 tons of cane per acre without nitrogen, 24.2 

 tons with potash alone, 28 tons with nitrogen alone, 29.8 tons with potash and 

 40 lbs. of nitrogen, and 3S tons with potash and 80 lbs. of nitrogen. With 

 applications of rice straw the respective yields of the variously treated plats 

 amounted to 25.9, 28.8, 30.5, 34.3, and 39.7 tons per acre. Applications of 150 

 lbs. of sulphate of potash per acre, made singly and In combination with 

 different amounts of sulphate of ammonia and nitrate of soda, resulted in 



