1888.] 



PUBLIC DOCUMENT — No. 33. 



115 



course was decided upon and carried out during the succeed- 

 ing season (1885). 



The entire field (A) was prepared, May 12, in a similar 

 manner as in preceding years for the planting of corn (see 

 Second Annual Report, page 81). All except Plat 6 were 

 planted with (Clark) corn. 



Plat No. 0, 

 Plat No. 1, 

 Plat No. 2, 

 Plat No. 3, 

 Plat No. 4, 

 Plat No. 5, 

 Plat No. 6, 

 Plat No. 7, 

 Plat No. 8, 



Plat No. 9, 

 Plat No. 10, 



Thrown out of the experiment. 

 5 Twenty-five lioxincls of sodium nitrate ( =:i 

 } to 4 lbs. of nitrogen). 



Nothing. 

 ^ Thirty pounds of dried blood (= to 4 lbs. 

 I of nitrogen). 



Nothing. 

 J Twenty-five pounds of ammonium sul- 

 l phate (z= to 5 lbs. of nitrogen) . 



Nothing. (Black Fallow.) 

 ^ Fifty i^ounds of dissolved bone-black (= 

 I to 85 lbs. of available phosphoi'ic acid) . 



Nothing. 

 ^Twenty-five pounds of mviriate of potash 

 ^ (z=to from 12 to 13 lbs. of potassium 

 (^ oxide) . 



48-^- pounds of potash-magnesia sulphate 

 (:= to from 12 to 13 lbs. of potassium 

 oxide). 



The growth on the entire field was cut Sept. 5, and the 

 product of each plat stooked by itself in the field for drying ; 

 it was housed Oct. 10, with the following results : — 



Amount of Dry 



Corn Fodder 



obtained. 



Fertilizer Applied. 



No. 1, 

 2, 

 3, 

 4, 

 5, 

 6, 

 7, 

 8, 

 9, 



10, 



480 lbs. 



310 



350 



300 



360 



280 

 250 

 945 



845 



^ 25 lbs. of sodium nitrate (=r to 4 lbs. of 

 y nitrogen). 



Nothing. 

 < 30 lbs. of dried blood (=: to 4 lbs. of ni- 

 l trogen) . 



Nothing. 

 J 25 lbs. of ammonium sulphate (= to 5 

 ( lbs. of niti-ogen). 



Fallow. 

 ^ 50 lbs. of dissolved bone-black (r= to 8.5 

 I lbs. of available phosphoric acid) . 



Nothing. 

 ^ 25 lbs. of muriate of jDotash (=z to from 

 ( 12 to 13 lbs. of i^otassium oxide). 

 { 48^ lbs. of potash-magnesia sulphate (=z 

 I to from 12 to 13 lbs. of potassium oxide) . 



