734 EXPERIMENTAL FARMS 



7 GEORGE V, A. 1917 

 HALF-ACRE PLOTS OF (.iREEN MOUNTAIN AND DELAWARE POTATOES. 



One-half acre plots of Green Mountain and Delaware potatoes were planted on 

 new ground June 1. The land was manured with 15 tons stable manure per acre, 

 which was ploughed under. Acid phosphate at the rate of 400 pounds per acre was 

 also applied. These made a very strong growth. The plants were sprayed three times 

 with poisoned Bordeaux mixture July 13, July 20 and August G. There was no blight. 

 The crop was dug September 24. The yield per acre was as follows: — 



Name. 

 Delaware . . 

 Green Mountain. 



IRISH COBBLER AND GREEN MOUNTAIN. 



Two one-half acre plots of Irish Cobbler and Green Mountain were planted on a 

 piece of ground that had been in potatoes the two previous years. The reason for 

 using this land was that there was no other land available. The land was in corn in 

 1913 on which no stable manure was used and it was fertilized for the corn at the 

 rate of 400 pounds complete fertilizer per acre and gave a crop of only 4 tons, 100 

 pounds ensilage corn per acre. This same land was in potatoes in 1914, having been 

 fertilized with 600 pounds of complete fertilizer per acre containing 4 per cent nitro- 

 gen, 8 per cent phosphoric acid and 5 per cent potash, and produced 137 bushels 

 potatoes per acre. The ground was fall ploughed after the potatoes were dug and 

 in the spring of 1915 again ploughed after which 600 pounds acid phosphate, 200 

 pounds nitrate of soda and 100 pounds of muriate of potash per acre were scattered 

 broadcast and harrowed in before planting. The seed was planted in rows 33 inches 

 apart and one foot apart in rows. The plants were well ^cultivated and sprayed three 

 times with poisoned Bordeaux. 



The crop on this field was a complete disappointment. The trouble seemed to 

 be largely due to rhizoctonia which prevented the plants from making a vigorous 

 growth and they maintained a stunted dwarf appearance and prematurely dried up. 

 The yield per acre was as follows : — 



Name. 



Irish Cobbler. . . 

 Green Mountain . 



POTATOES CUT IN DIFFERENT WAYS. 



In order to find out the value of cutting seed tubers into pieces having one or 

 more eyes, tests were made with Empire State and Table Talk. The whole potatoes 

 averaged 36 bushels seed planted per acre; 1-eye pieces, 17 bushels; the 2-eye pieces, 

 24 bushels; the 3-eye pieces, 36 bushels; and the ordinary planting, 18 bushels per 

 acre. The 1-eye pieces averaged 1 ounce to a set; the 2-eye pieces IJ ounces; and 

 the 3-eye pieces, 2 ounces to a set. The seed was planted 1 foot apart in the row and 

 the rows were 33 inches apart. 



The land on which these tests were made had not previously been in potatoes. 

 It was manured at the rate of 15 tons stable manure per acre and acid phosphate at 

 the rate of 400 pounds per acre was scattered broadcast and harrowed in before plant- 

 ing. 



Kentville. 



