FIELD CROPS. 233 



Influence of certain stimulants on the development of sugar beets, O. 

 MtTNERATi, U. Mezzadroli, and T. V. Zapparoli {I'^tns. Sper. Agr. Itah, JfG 

 {1913), No. 7-^, pp. /,8G-Ji'JS; aba. in Surr. Indiy. ct Colon., 83 (1914), Nos. 10, 

 pp. 231-234; 13, pp. 305-309; U, pp. 323-321).— The sulphate, chlorid. dloxid, 

 .•md carbonate of niaugauese, sulphate and nitrate of aluminum, sulphate of 

 niajnieslum, boric acid, borate of soda, and sulphate of uranium were used in 

 various quantities and combinations in growing sugar beets on over 100 small 

 plats. 



The data show that the largest yield, at the rate of 611.2 kg. of sugar per 

 hectare (544 lbs. per acre), was obtained on a control iilat witbout any of the 

 above-mentioned chemicals; the lowest yield. 343 kg. per hectare, was obtained 

 from the plat receiving 100 kg. of nitrate of aluminum per hectare. The highest 

 percentage of sugar. 15 per cent, was obtained from the plat receiving 50 kg. 

 of carbonate of manganese per hectare, on which the yield was at the rate of 

 374 kg. per hectare with a purity coefficient of 83.73 per cent. The lowest 

 percaiitage of sugar, 12.63 per cent, was from the control plat from wbich the 

 yield was 611.2 kg. and the purity coefficient 83.16 per cent. The highest 

 purity figure was S5.6 from the sulphate of magnesia plat where the yield was 

 4T)^ kg. per hectare and the percentage of sugar 14.51, and the lowest purity 

 coefficient was 70.62 i)er cent from the manganese dioxid plat where the yield 

 was 53.3 kg. per hectare and the percentage of sugar 12.99. 



Excessive foliage in sugar beets, M. A. Vivien {Bui. Assoc. Chim. Suer. et 

 Dutill., 31 {1914), No. 7, pp. 501-505). — Analyses of juice from beets that de- 

 veloped leaves and crowns in different degrees showed that those beets with 

 a larger i)roportion of foliage yielded le.ss sugar than those with a low per- 

 centage of foliage, 11.5 against 12.75 per cent in one series, and 12.2 against 

 14.65 per cent in another series. 



Analyses of toiw and of trimmed beets are given in tabular form. 



Dry matter content of stock beets, H. Neubaueb and G. Hillkowitz {Landic. 

 Ztschr. Rheinprifvinz, 13 {1912), No. 1, pp. 32-34; U {1913), No. 2, pp. 20, 21; 



15 {1914), ^0. 7, pp. 117, 118). — Data are given showing percentage of dry 

 matter in numerous varieties of stock beets grown at several centers, In 1911- 

 1913, as related to the weights of individual beets. In 1911 the weight decreased 

 from 2.19 kg. for beets with less than 9 per cent of dry matter to 0.66 kg. for 

 those with over 13 per cent. In 1912 and 1913 the weights were highest, 2.12 

 and 1.96 kg., respectively, for beets with from 10 to 11 per cent of dry matter, 

 and showed other irregularities. 



Dorsiventral structure of the cane stem, C. E. B. Bremekamp {Meded. 

 Proefstat. Java-Suikcrindus., 4 {1914), No. 18, pp. 309-313, fig. 1; Arch. Suiker- 

 indus. Nederland, Indie, 22^ {1914), No. 2, pp. 41-4^, fig- !)• — Notes regarding 

 the maimer in which the leaves overlap are given. 



Buying cane by test; some suggestions, C. J. Bouebakis {La. Planter, 52 

 {1914), No. 4, P- 57). — ^This article offers suggestions on the advantages of buy- 

 ing sugar cane at the mill on valuation shown by tests of juice. It is pointed 

 out that the advantages to the producer would be a stimulus to improve the 

 sugar content of the cane by fertilization and cultivation rather than merely 

 the weight of foliage. 



Green manures for tobacco, D. Vigiani {Coltivatore, 59 {1913), No. 34, PP- 

 502-504). — Results of green manuring for tobacco in the Arezzo Province. Italy, 

 show the weight of 1.000 cured plants following beans to have been 138.88 kg., 

 following mustard 94.44, following lupines 100, following turnips 98.23, follow- 

 ing goat's rue 70.57, and following manure 90.9 kg. 



A new method with the tobacco crop, A. Roman {Bol. Oflc. Sec. Agr. Cuba, 



16 {1914), ^^0. 1, pp. 1-4, fig. 1). — Successful attempts at planting tobacco seed 

 directly In the field to avoid transplanting are noted. 



