FERTILIZERS. 861 



In pol experiments with wheat, rye, barley, and oats the"N" fertilizer coin- 

 pared favorably with nitrate of soda and produced no injurious effects in spile of the 

 nitrites present. The results of the field experiments with potatoes and sugar beets 

 were inconclusive on account of drought. 



On the use of calcium cyanamid and calcium nitrate as fertilizers, R. 

 Perotti (Staz. Sper. Agr. fl<i/., 37 (1904), No. 9, pp. 787-805; abs. in Ckem. Centbl., 

 1905, V, .V". .', ;*. //;). — On the basis of his experiments, the author concludes that 

 lime nitrogen may under certain conditions interfere with germination and growth 

 of plants and the action of bacteria. When applied sometime before seeding and 

 thoroughly incorporated with the soil it is an effective fertilizer and hastens the 

 maturity of grains. 



Nitrogen and agriculture in the seventeenth, century, L. Thiry (Rev. Gin. 

 Agron. [Louvairi], 13 (1904), No. 11-12, />/>. 459-472). — A brief historical review of 

 the knowledge of that period on this subject. 



Chilean nitrate deposits (Amer. Fert., 22 (1905), No. 1, pp. 5-9). — This article 

 deals with the world's supply and consumption of nitrate, exports, number of fac- 

 tories, and output. It is stated that according to a report of Francisco Valdes Ver- 

 gara, collector of customs at the port of Valparaiso, Chile, the total exports of nitrate 

 from Chile from 1840 to 1903, inclusive, amounted to 25,940,944 metric tons (of 

 2,204.6 lbs. each). 



"At the end of twenty years, when 35,000,000 tons will have been extracted, it 

 will be seen that the exhaustion of the nitrate deposits is near at hand." The 

 increasing demands for nitrate is commented on and methods of application as a fer- 

 tilizer are discussed, special reference being made to experiments at the Maryland 

 Station (E. S. R., 16, p. 138). The American consumption of nitrate for powder 

 making, fertilizer, etc., is stated on the authority of Engineering and Mining Journal 

 to have been 275,000 long tons in 1904. 



Experiments on the potash fertilization of cultivated plants, 1'. Wagner 

 etal. (Arb. I>nit. Landw. Gesell., 1904, No. 96, pp. VII+422).— The results of 1,905 

 pot experiments and 1,441 field experiments with barley, oats, rye, potatoes, carrots, 

 beets, and other crops, to determine the relative value of kainit and 40 per cent pot- 

 ash salt are reported. The average of all results shows that the kainit was some- 

 what more profitable than the 40 per cent salt. This is attributed in part at least to 

 the fertilizing effect of the sodium chlorid present in kainit. 



Fertilizer experiments with iron slag, II. vox Feilitzen (Svenska Mosskul- 

 turfor. Tidslcr., 18(1904), No. 5, pp. 335-340). — Finely ground "masugn" slag was 

 found to produce good results on a moor soil low r in lime. It has the advantage of 

 slaked lime in containing some phosphoric acid and potash, which proved of benefit 

 to the beans experimented with. — F. w. woi.l. 



Can mud ( bleke ) replace slaked lime on soils low in lime ? II. vox 

 Feilitzen ( Svenska Mosskulturfor. Tidikr., 18(1904), An. 5, pp. 340-343). — Experiments 

 with pelusehke beans and with oats showed that lime in mud (bleke, kalkgyttja) 

 is of similar value when applied on moor soils low in lime as that of slaked lime. — 

 f. w. WOLL. 



Commercial fertilizers, (i. Roberts (California sin. Bui. 162, pp. 22). — The 

 results of analyses of SO samples of fertilizers, representing 54 brands, examined under 

 the provisions of the State fertilizer law are reported, with various explanatory notes 

 regarding the conduct of the inspection, the valuation of fertilizers, etc. 



Analyses of fertilizers, C. A. Goessmann (Massachusetts Sta. Bui. 102, pp. 40). — 

 This bulletin gives tabulated results of analyses of commercial fertilizers inspected 

 under the State law ami of miscellaneous fertilizing materials sent to the station for 

 examination. 



Inspection and analyses of commercial fertilizers on sale in the State, 

 \X. F. Hand et al. (Mississippi Sta. />'»/. 82, pp. 27). — This bulletin contains analyses 



