822 EXPERIMENT STATION EECOED. 



The preseutatiou of well grouuded facts relating to fertilizers is considered 

 by the author important at this time because of the " many conflicting theories 

 and much unsound teaching on the subject of soil fertility," and because of his 

 observation in New York " that, even at the present time, fertilizing practice i» 

 influenced more by the advertising agencies of the various fertilizer concerns 

 than by the results of work at the agricultural experiment stations throughout 

 the country." 



Mixed applications of calcium, cyanamid and sodium nitrate, P. Bolin 

 (Mecldel. Centralanst. Forsoksv. Jordhruksomrddet, No. 79 {1913), pp. 8; K. 

 Landthr. Akad. Handl. och Tidskr., 52 {1913}, No. 4, PP- 216-281; ahs. in 

 Intemat. Inst. A^r. [Rome], Mo. Bui. Agr. Intel, and Plant Diseases, 4 {1913), 

 No. 9, pp. 1356-1358). — In experiments with oats calcium cyanamid was less 

 effective than sodium nitrate, but mixtures of the two were more effective than 

 either alone and were more economical than nitrate alone. 



The possibility of using crude phosphates and limes containing silica as 

 manures, T. Pfeiffee {Intemat. Inst. Agr. [Rome], Mo. Bui. Agr. Intel, and 

 Plant Diseases, 4 {1913), No. 9, pp. 1316-1321) .—This article is substantially 

 the same as one already noted (E. S. R., 29, p. 520). 



Ground limestone for soil improvement, J. F. Baeker {New York State 

 Sta. Circ. 21 {1914), PP- 14)- — ^Information on the subject drawn from various 

 sources is presented in popular form in this circular which treats of solubility 

 of limestone, function of carbonates in soils, chemistry of limes, comparative 

 experiments with ground limestone and burned lime, limestone versus caustic 

 lime, fineness of ground limestone, and methods of applying limestone. A list 

 of companies in New York producing ground limestone or marl for agricultural 

 use is appended. 



Pennsylvania limestone and lime supplies, W. Feeab {Pennsylvania Sta. 

 Bui. 121 {1913), pp. 11-106). — This is a compilation and brief discussion of 

 analyses of limestones from the various deposits in the State of which 54 are 

 sufficiently definite to have received distinguishing names. The limestone 

 formations are classified in their geological order beginning with those of most 

 recent age. A compilation of analyses of commercial lime products is also 

 given. 



Trials witli molasses as a sugar-cane manure or fertilizer, and with 

 chlorinated lime as a soil ameliorant, J. B. Harrison and R. Waed {Jour. 

 Bd. Agr. Brit. Guiana, 6 {1913), No. 3, pp. 123-126; Intemat. Sugar Jour., 

 15 {1913), No. 116, pp. 313-315; ahs. %}% Chem, Ahs., 8 {1914), No. 4, p. 114).— In 

 experiments in which diluted molasses was used at rates of 100, 200, and 300 

 gal. per acre the average results for 3 years showed a slight increase for plats 

 treated with molasses, but this increase is attributed solely to the nitrogenous 

 matter contained therein. In experiments in which 150 lbs. per acre of chlori- 

 nated lime was applied in solution to a stiff clay soil the yields on the treated 

 plats were but slightly larger than those obtained on the untreated plats. 



Trials with, molasses as a sugar-cane manure, W. P. Ebbels {Intemat. 

 Sugar Jour., 15 {1913), No. Ill, p. 421 ; ahs. in Chem. Ahs., 8 {1914), No. 4, 

 p. 77.^).— Referring to the experiments noted abeve it is stated that the nega- 

 tive results were probably due to the fact that the molasses was not applied 

 at the proper time, viz, three or four months before the cane was planted and 

 in the holes made to receive the cane. 



The fertilizing action of sulphur on grapes, V. Vekmoeel {Bui. Soc. Nat. 

 Agr. France, 14 {1914), No 1, pp. 48-51). — Marked benefit was derived from the 

 use of sulphur (178.5 to 357 lbs. per acre), especially when applied in connec- 

 tion with manure. The effect of the sulphur decreased as the amount of manure 

 applied diminished. 



