644 



EXPERIMENl^'AL FARMS 



5 GEORGE v.. A. 1915 



manure, and sulphate of ammonia was used for nitrogen. The duplicate system of 



testing was used for this experiment, and the following yields are based on the 



average product from two 66-foot rows. The potatoes were planted May 31 and dug 

 on September 26. 



Fertilizers used. 



No fertilizers 



Muriate of potash (320 pounds per acre) 



Acid phosphate (600 pounds per acre) 



Sulphate of ammonia (160 pounds per acre). . , 



Acid phosphate (600 pounds per acre) \ 



Muriate of potash (320 pounds per acre) .- 



Sulphate of Ammonia (160 pounds per acre) J 



476 40 



Each of these fertilizers cost about $9 to $10 per acre in the quantities used, 

 exclusive of cost of application. 



FIVE-YEAR AVERAGES. 



Thirteen varieties of potatoes have been grown on this Farm for five years, A:i 

 others for four years, and three others for three years. The following table gives the 

 average results of the tests for these kinds: — 



Variety. 



Average 

 Earliness. 



Rawlings Kidney (Ashleaf Kidney) 



Empire State 



American Wonder 



Morgan Seedling 



Reeves' Rose 



Late Puritan 



Irish Cobbler 



Money Maker 



Early White Prize 



Manitoba Wonder 



Carman No. 1 



Rochester Rose 



Gold Coin 



Late 



Medium 



Late 



Medium 



it 



Late 



" early 

 " late.. 



Early 



Medium. . . . . 



Early...//.;'. 

 Late 



Average Size. 



Average Yield. 



Large... 

 II 



it 



Medium 

 Large. . . 

 Medium 



Small... 

 Medium 

 Large... 

 Small... 

 Large... 



Bush. Lb. 



534 

 523 



480 

 479 

 467 

 465 

 448 

 446 

 443 

 443 

 418 

 400 

 378 



30 

 12 

 46 

 30 

 26 

 10 

 34 

 36 

 42 

 42 

 26 

 24 

 24 



AVERAGE FOR FOUR YEARS. 



Woodbury's White Rose. 



Early Ohio 



Peacock's Surprise 



Hamilton's Earlj^ 



Factor 



Hard to Beat 



Medium Medium . 



Earlj^ 'Larjje. 



Medium. 

 Late.. 



early... 



Medium. 



it 



Small...; 



AVERAGE FOR THREE YE.A.RS. 



520 



482 

 464 

 441 

 301 



248 



10 

 10 

 ■15 

 22 

 45 

 55 



Table Talk iLate. 



Early Bovee [Early 



Sabean's Elephant Late. 



Largo... 

 Medium 

 Large... 



714 

 509 

 459 



24 

 40 

 30 



Bkaxdox. 



