38 EXPEEIMENT STATION KECOKD. 



lowest (58 mg.) on October 14. The amid and amiuoniacal nitrogen ranged 

 from 24 mg. on June 10 to 76 mg. on June 27, the following harvest, fluctuating 

 between these two figures on succeeding dates until December 12, when it was 

 30 mg. per beet. 



Defoliation tended to reduce the sugar content of the root. No relation was 

 shown to exist between the form of the root and its content of sugar. 



The relation of the foliage to the sugar content of beets, L. Maxpeaxjx 

 {Vie Agr. et RuraJe, 5 {1915), No. 12, pp. 213-216).— This gives results of a 

 study of the relation of quantity of foliage to the quality of the beets grown 

 from seed planted on dates with an interval of three weeks between, and of 

 a study of the relation of color of the foliage at harvest to the quality of the 

 beets. 



The data indicate a direct relation between the sugar content and the devel- 

 opment of the foliage, showing less sugar in beets with the fewer leaves, i. e., 

 the late-planted beets. Beets having yellow, mature foliage at the time of 

 harvest showed a lower content of sugar than those having some green leaves. 

 Deep-growing, conical-shaped boet.s showed a higher content of sugar than the 

 more shallow-growing roots. 



Influence of direction of row on the yield of sugar beets, J. K. Gbeiseneggeb 

 (Osterr. Ungar. Ztschr. Zuckerindus. u. Landic, 44 {1915), No. 1, pp. 14-^, 

 fig. 1). — It is shown as the result of experiments at Marchfeld, Austria, that 

 rows running east and west yiehled 7 per cent more of beets, 71 per cent more 

 of leaves, and G.4 per cent more of sugar tlian the rows that ran north and south. 



Catal3rtic elements and fertilizing substances little used in the cultivation 

 of sugar beets, O. Munekati, G. Mezz.\i)ROli, and T. V. Zappakoli {Staz. Sper. 

 Agr. lidL. 47 {1914), No. 11-12, pp. 811-852) .—This continues work previously 

 noted (E. S. R., 31, p. 233). The results seem to Indicate only sliglit. if any, 

 stimulating effects of the substances used, wlilch consisted of different forms of 

 magnesia, manganese, sulphur, and uranium. 



Lead nitrate as a catalytic fertilizer for sugar beets, J. K. Gbeiseneggeb 

 (Osterr. Ungar. Ztschr. Zvckcrindus. u. Landxc, .^^ {1915), No. 2, pp. 91-96). — 

 The slight fluctuations in the yield and quality of the beets which were noted 

 as results of this experiment could not be attributed to the use of lead nitrate, 

 ai)plHMl at the rate of 4 and 10 kg. per hectare. 



The experimental error in field trials with sugar cane and the effect on 

 this error of various methods of sampling. II. E. Annett {Agr. Research 

 Inst. I'usa Bill. 49 {1915), pp. 18, fig. 1). — Five methods of sampling sugar cane 

 on A-acre plats to determine the total weight of cane, average weight of each 

 cane, and total weight, percentage, specific gravity, sucrose content, reducing 

 sugar content, and total sugar content of the juice were tested in 1913. 



The results show that " the sample should consist of about 200 canes taken 

 in groups of three from about 70 places througliout the area. These 70 places 

 sliould be accurately measured out and the three canes nearest to the meas- 

 ured points be taken, provided such canes are canes which would normally 

 be taken by the cultivator for juice extraction. No increa.se in accuracy seems 

 to be obtained by taking half plat samples. In these experiments the ' 100 

 canes ' samples seem to have given as good results as any other method of 

 sampling, but samples consisting of only .50 canes are much less reliable." 



Paraguayan tobacco, G. T. Bebtoni {Bol. J)ept. Nac. Fomento [Paraguay], 

 No. 7 {1914), pp. 5-16, pis. 5).— This article gives results of a study of the 

 native Paraguayan tobacco, Havana tobacco, and hybrids from cros.ses of these 

 varieties, including descriptions of types accompanied by drawings showiDg the 

 distinguishing characteristics. 



