1897.] 



PUBLIC DOCUMENT — No. 83. 



191 



rate of 390 pounds per acre. (For the analysis of phos- 

 phates and cost of each in 1890 sec rc[)()rt for 1895.) 



The following fertilizer mixtures have been applied annu- 

 ally, from 1890 to 1894, to all })lats, with the exception of 

 Plat 3, which received in 1890 ground a[)atito and in 1891 

 no phosphate whatever, on account of the failure of securing 

 in time apatite suitable for the trial. 



JV^ames of Crops raised from IS 90 to 1894. 

 1890, potatoes (see eighth annual report of Massachusetts 

 State station) ; 1891, winter wheat (see ninth annual report 

 of Massachusetts State station) ; 1892, serradella (see tenth 

 annual report of JMassachusetts State station) ; 1893, Dent 

 corn, Pride of the North (see eleventh annual report of 

 Massachusetts State station). 



Summary of Yield of Crops (Pounds). 



1890. 



Potatoes. 



1891. 



Wheat. 



1893. 



Serradella. 



1893. 



Corn. 



Plat 1, pliosphatic slag, 

 Plat 2, Moua guano, 

 Plat 3, Florida pbosphntc, . 

 Plat 4, South Carolina floats, 

 Plat 5, dissolved bone-blauki 



1,600 

 1,415 

 l.ijOO 

 1.830 

 2,120 



380 

 340 

 215 

 380 

 405 



4,070 

 3,410 

 2,750 

 3,110 

 2,920 



1,660 

 1,381 

 1,347 

 1,469 

 1,322 



Having for four years (1890-94) in succession pursued 

 the above-stated system of manuring each plat with a ditier- 



