130 



HATCH EXPEKIMENT STATION. 



[Jan. 



The field was ploughed as a rule during the month of 

 October, and again at the close of the month of April. The 

 fertilizer was in each case applied broadcast soon after plough- 

 ing in the spring. The seed was sown in hills or drills, as 

 circumstances advised, and the crop kept clean from weeds 

 by the use of the hoe or the cultivator. The following crops 

 were raised : — 



1890, potatoes (see eighth annual report). 



1891, winter wheat (see ninth annual report). 



1892, serradella (see tenth annual report). 



1893, Dent corn, Pride of the North (see eleventh annual report) . 



Summary of Yield of Crops {Pounds). 



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

 above-stated system of manuring each plat with a different 

 kind of phosphate, yet of corresponding money value, it was 

 decided to continue the experiments for the purpose of study- 

 ing the after-effect of the different phosphates on the crops to 

 be raised. To gain this end the phosphates were hereafter 

 in all cases entirely excluded from the fertilizers applied ; in 

 addition to this change, the former amount of potash and 

 nitrogen was increased one-half in quantity, to favor the 

 highest effect of the stored-up phosphoric acid of the soil 

 under treatment. 



The fertilizers hereafter to be used had the following com- 

 position : — 



Plat 1 r6 494 Bouare feetl \ ^'*3 PO^ncl^ of nitrate of soda. 



l-iat 1 (b.iyi square leet}, . . . . • | gj pounds of potash-magnesia sulphate. 



Plat 2 (6,565 square feet) j 65J pounds of nitrate of soda. 



i lai, ^ (.v,»,v,u cijua c icoi^ ^ gg pounds of potashmaguesia sulphate. 



•Di . o /c cofl „ * ., < 66 pounds of nitrate of soda. 



Plat 3 (6,636 square feet) ^ gg founds of potash-magnesia sulphate. 



Plat 4 (6,707 square feet) | 663 pounds of nitrate of soda 



X jou'i v,"i'"' =si"<"° '>="=''^ j 90 pounds of potash-magnesia sulphate. 



TJi t c. rR ITS =^„„..<» fo<^*^ S 67J pounds of nitrate of soda. 



flat & (b,77S square leet; ^ 9o| pounds of potash-magnesia sulphate. 



