334 



EXPERIMENTAL FARMS. 



64 VICTOR^/.. A. t:>01 



BARN-YAED MANURE COMPARED WITH COMMERCIAL FERTILIZERS 



ON EARLY POTATOES. 



Nine varieties of potatoes were selected as among the most promising early sorts, 

 and the object of the experiment was to learn which ones would produce the most 

 early marketable tubers ; also, to determine the value of stable manure compared with 

 commercial fertilizers for producing an early crop. 



Well rotted stable manure, at the rate of twenty-five one-horse cart-loads per acre, 

 was spread on the land in the fall after it was ploughed. The previous crop 

 was strawberries, the plants having been ploughed under. One end of the field, a 

 strip 68 feet long, was manured, and the balance was fertilized with chemical potato 

 fertilizer, at the rate of 800 pounds per acre. 



The land was worked up in the spring by ploughing and the spring-tooth harrow, 

 after which the fertilizer was sown and harrowed in by the smoothing harrow. The 

 land was drilled into rows, 24 inches apart, and the seed planted one foot apart in the 

 rows, and covered with the plough. The potatoes were cut so that each piece contained 

 from two to three eyes. 



The size of a plot was one row, 66 feet long. The yield of marketable and 

 unmarketable potatoes on a part of the field which was fertilized only, and dug August 

 10 is given ; also, the yield from both manured and fertilized plots dug August 24 is 

 given. The seed was planted May 30. The variety Irish Cobbler is a white potato, 

 with rather deep eyes. Burpee's Extra Early, Bovee, Pearce's Extra Early, Early Six 

 Weeks and Crown Jewel are pinkish- white sorts, the others are rose colour. These 

 varieties are all of excellent quality : — 



EXPERIMENTS WITH EARLY POTATOES, WITH BARN-YARD MANURE AND 



ARTIFICIAL FERTILIZER. 



Name of Variety. 



Bnrpcp'8 Extra I^arly 



Irish Cobbler 



Bo ^i^e 



Pearce's Extra Early. 



J''.arly (ieni 



Early Six NVeeks 



Early Sunrise 



Eirly Ohio 



Crown Jewel 



Fertilized. 



Dug Aug. 10. 





Lbs. 



40i 



30 



27 



33 



33 



.33 



30 



42 



ID 



Si 



Lbs. 



(> 

 12 



4h 



H 

 c, 



9 

 9 



8^ 



Fertilizer- 



Dug Aug. t4. 



-a 



Lbs. 



57 

 52i 



39" 



37i 



52| 



3!) 



37i 



4.-)| 



58i 



it 

 o ^ 



Lbs. 



1\ 



9 

 lOi 



G 

 lOi 



« 



G 



4i 



Maxleed. 



Dug Aug. 24. 





0) 



Lbs 



64i 



6G 



CO 



42 



70i 



Gl| 



57 



56i 



66 



u 

 eS 



S® 



■"-2 



Lbs. 





 lOi 



of 



4| 



9 



9 



7i 

 G 



7i 



EXPERIMENTS WITH BORDEAUX MIXTURE AS A PREVENTIVE OF ROT 



IN POTATOES. 



A strip of land on which nine varieties were grown was thoroughly sprayed July 

 27, August 7, 17 and 27 ; a strip adjoining on which the same sorts were growing was 

 left vmsprayed. 



The piece of land on which these potatoes were grown received the same treatment 

 as far as cultivation and fertilizing, all having received only potato fertilizer. Tho 



