42 FERTILISERS AS AN AID TO 



The Department of Agriculture, Ireland, 



conducted trials at numerous farm centres 



without any farm-yard manure, and 



Examples 11 ^ ve t ^ ie Bowing figures in their 

 official Journal as the average of six 

 years, 19061911, for the most profitable 

 combination per acre : 



Tons. Cwts. Qrs. 

 With no Manure ... ... ... per acre 532 



With a Complete Manure similar to that 



applied in Devonshire ,, 22 I 2 



Gain over no Manure ... ... ,, 16 18 o 



Annual Profit per acre after paying for 

 Fertilisers ... ... ... ... 



1 The inference to be drawn from these figures 

 is that when farm-yard manure is not applied 

 more satisfactory returns, both as to yield of 

 crop and as to profit, are likely to be obtained 

 from the use of a complete mixture of manures 

 than from the use of an incomplete mixture." 



These results are confirmed in a striking 



manner by the important trials carried out by 



the West of Scotland Agricultural College during 



1904, 1905 and 1906 on no less than thirty-eight 



farm centres in different Scottish 



important counties, and on a great variety of 



Scottish soils. The best combination or mix- 



tion* ture supplied similar quantities of 



Turnips. nitrogen and potash per acre, but 



rather more soluble phosphates than 



that which did best in Devon and Ireland. 



The average yearly swede crop, comparing 



"no manure " with the combination, was : 



