310 



Appendix fpp. 520-540). — This rontaiiis the acts of the State k'jjis- 

 lature lelatiug to the ;statiou,tu the pieveiition of the spread of fuii<;«)us 

 diseases of phiiits, and to the iuspection of fertilizers; direetioiis for 

 sampling fertilizers and feeding stnfifs; the order of station work dur- 

 ing the year; and a eataloj^iie of the bulletins issued by the station from 

 its organization (1880) to December ."U, 1800. Abstracts of the bulle- 

 tins lor 1880 and 1800 may be found in Experiment Station Keeonl. \ "l>i 

 I and IT. 



TiiiiiD Annuai. RErf>T^T OF THE New Jeksey Colleoe Station 

 For. I'liR YEAR ENDiNfr .liiNE 30, 1800 (p]). aal-ooO). — This contains 

 a bri<l statement as to the organization of the station. 



New Jersey Stations, Bulletin No. 83, September 15, 1891 (pp.35). 



ANALVSKS AM) VALUATION OF FKKTILIZEKS, K. li. VoolJHHE.S, 



M. A. — This contains analyses of -1- brands of ''cojiiplete fertilizers'' 

 colh'ctetl within the State during 1801. These analyses *• tinnish <iir( < t 

 answers to the following rpu'stions:'' 



(1) Do tlie ;ni.ilys(>s of fortilizprs give any definite iiiforniation as to i\u- kiml of 

 niati'iials iisfil in niakiii;; tlic (litlorent luaiids? 



(2) In tin- nunilirr of luands on the market, is tliero a variation in coniiio^it ioii 

 sntlirirnt to fiillill .s]>c<'ial soil anil rro]> r('i|iiiri'nicnt!<f 



(8) Do tlir nianulartnriis a.s a rnle fnrnish in tlioir nii\tnr*-s llic anioniit ol plant 

 food clainieil in the <;uaranl its f 



(4) Wln-n a giv«>n lirand is fonnd to give satisfaction is iImtp any ovidcncr lliat it 

 will not clian^e in <"oini»osition from yt-ar to year? 



(.5) Are tin- station's valnations of the ditVereni brands of any value as a j^niilf in 

 their purchase? 



(6) Is it more advantaijeons to hny hijjh-firadi' than low-jrrade fertilizers? 



It is <laiiiMMl that while the analysis does not furnish comph'te infor 

 mation as to the source and (|uality of the materials entering info the 

 coin]iosition of a compound fertilizer, "an analysis, rightly interjireted. 

 may be of great service in the selecti()n of the most efTieieiit brands." 

 Wide ditfereni'cs were found in the comi»osition of speciiil cni]) lerti- 

 lizers prepaied by dilVerent manufaeturers. 



II rolLl 



For instance, tlieri> arc 11 dilVcrciit lirands for potatoes, varying widely ii 

 position hotli as rejjards (|iiaiitity and quality of ]dant food. A talnilation of 

 these lirands shows that the nitrojjen varies from 0.7(» to .'>.:<;i ])er cent, a\ ailaldi' 

 |)hosphoric acid from '-Mil to !».T7 i>er cent, and potasii from 2.0J to TJ.l'l' jut cent. 

 Tliis would seem to indicate either that manufacturers are not a unit as to tiicir ideas 

 of the sjiccial rc<|uircmcuts of the potato, or that no piirticnlar sinniticanee shouhl 

 be .attached to si)i-cial-crop brands as now ]trep.ired by the dilVcn-ut manufacturers. 



With reganl to tlie iclation between the guaranty and the results i>\' 

 analysis, 114 (54 per <'ent) of the 212 brands analyzed were found to be 

 below the guaranty with resjject to one or more ingredients. This 

 leads (he author to conclude that ''the guaranty is not a safe guide as 

 to the composition of mor«' than (Uie hall" of the brands on the niaikef 

 in the State." HowcNcr. *' a careful study of the publislud :ui:i]yses »»l' 



