128 



EXPERIMENT STATION RECORD. 



In a variety test Pernnu Crown and Yladiniir ])roduco(I tlio highest net re- 

 turns among 5 varieties of Russian fiax seed tested, wliile at 5 centers Peruau 

 Crown gave a higher yield of straw and scutched fiber tlian did the Belfast 

 I)i-nnd, the .iverage difference amounting to £1 7s. Gd. per acre. Irish saved 

 seed, selected from long stalks, produced returns from flax and tows £2 9s. 5d. 

 greater than those obtaineil from seed not selected, wlnle Pernau Crown seed 

 produced still greater returns. Earlier work witli flax has lieen previously 

 noted (E. S. R., 20, p. 636). 



In 1906, freshly imported Danish Archer barley, and the same variety grown 

 in Ireland one year proved i)ractically equal as seed. In 1907, the Irish Archer 

 produced a yield surpassing that of Danish Arclier by OS lbs., but in 1908 and 

 1909, the two were again practically equal. The most profltable fertilizer for 

 most barley soils was 1 cwt. sulphate of ammonia, 3 cwt. superi)hosi)liate, and 



3 cwt. kainit per acre. 



On meadows the use of nitrate of soda and of 10 tons of farmyard manure 

 proved unprofitable. The heaviest yield was obtained from an application of 

 1 cwt. nitrate of soda, 2 cwt. superphosphate, and 2 cwt. kainit per acre. The 

 nitrate of soda should' be applied early in April, the remainder of the formula 

 during the preceding February. 



The greatest profits with potatoes were secured from an application of 1.5 

 tons of farmyard manure, 1 cwt. sulphate ammonia, 4 cwt. superphosphate, and 

 1 cwt. muriate of potash per acre. In a variety test the main crop varieties, 

 Factor and ITi)-to-Date, and the midseason variety Windsor Castle produced 

 yields of 13 tons or iiiore per acre. Sprouted seed produced an average yield 

 of 2i tons per acre more than did unsprouted seed in 338 tests, extending over 

 a period of seven years. 



A manurial test with mangels conducted on 33 different farms in 21 counties 

 indicated that the most profltable application w^as 20 tons of farmyard manure, 



4 cwt. superphosphate, 2 cwt. sulphate of ammonia, 4 cwt. salt, and 2 cwt. ni- 

 trate of soda, per acre, while with oats, the most profitable application appeared 

 to be 1 cwt. sulphate of ammonia, 3 cwt. superphosphate, and 3 cwt. kainit. 



For turnips, 20 tons of farmyard manure per acre is regarded as the standard 

 dressing, but this amount may be reduced to 10 tons if supplemented by 4 cwt. 

 superphosphate, 1 cwt. sulphate of ammonia, and 3 cwt. of kainit. Basic slag 

 may be substituted for superphosphate and is recommended where the disease 

 finger-and-toe (Plasmodiophora brassicce) is prevalent. 



In a variety test of wheat. Squarehead Master and White Stand Up proved 

 approximately equal in yield, while Red Fife produced the higliest quality of 

 flour but the lowest average yield per acre. 



The average yields in fertilizer tests conducted at a number of centers is 

 shown by the following table : 



Table of results of tests with four nitrogenous manures. 



Fertilizer. 



Sulphate of ammonia. 



Nitrate of soda 



Calcium cyanamid . . . 

 Nitrate of lime 



Amount 

 per acre. a 



Cwt. Qts. 

 1 



U 



1 

 1 2 



Crop yield. 



Potatoes. 



Tons. Cwt. 

 12 6 

 12 2 

 12 15 

 12 10 



Turnips. 



Tons. Cwt. 



25 3 



26 

 26 3 

 24 17 



Mangels. 



Tons. Cwt. 

 32 10 



31 14 

 30 3 



32 17 



These amounts were doubled in the tests with mangels. 



