Potato Culture. 



155 



as the condition of the soil would permit and the land was imme- 

 diately harrowed and rolled. Before planting, the Acme harrow 

 was used to pulverize and loosen the surface soil. Rows were 

 laid oflFat distances of 2,/i feet and opened with a double mold- 

 board plow. The seed was from selected stock and was cut so 

 that two or three eyes were on each piece. More care was 

 taken to have each piece of potato of good size than to have a 

 certain number of eyes to each piece. Seed was dropped at 

 distances of 14 inches in the row and covered with a cultivator 

 to a depth of about 4 inches. All plats were planted May 9 and 

 harvested October 9. The complete record of the plats will be 

 seen in the table below. 



The first tillage was given May 20, before the potatoes were up, 

 when all plats were thoroughly harrowed with the spike-tooth 

 harrow. The cultivation was continued until August 6, at which 

 time the vines so covered the space between the rows that tillage 

 could no longer be continued without producing serious injury. 



RECORD OF potato PLATS FOR 1 896. 



REMARKS. 



Fertilized with 200 

 potash and 300 lbs. 



Fertilized with 200 

 potash and 300 lbs. 



> Comparable. 



> Comparable. 



Variety test. 



Fertilized with 200 

 potash and 300 lbs. 



Fertilized with 2"o 

 potash and 300 lbs. 



lbs. muriate of 

 of acid phosphate 



lbs. sulphate oi 

 of acid phosphate 



lbs. of muriate of 

 of acid phosphate. 



lbs. of sulphate of 

 of acid phosphate. 



Comparable. 



Those marked "comparable" are to be studied for the effect 

 of tillage only. 



