76 



Manuring of Potatoes. 



is charged against the increase on Plot 7. It will be noticed 

 that in 1900 the moderate dressing of dung gave quite as 

 good results as the more liberal allowance. 





Plots 1 

 and 14. 



Plot 2. 



Plot 3. 



Plot 7. 





No 

 manure. 



20 tons 

 dung. 



10 tons 

 dung. 



10 tons dung 

 \\ cwt. sulph. amm. 

 3 ,, super. 

 2 „ sulph. pot. 



Average crop in 1899 

 „ „ „ 1900 

 jj „ » 1901 



Tons Cwts. 

 6 71 

 6 4i 

 6 Hi 



Tons Cwts. 



10 iof 

 ,8 11 



10 7f 



T'ns C'ts. 

 8 19 



8 ilk 



9 8 



Tons Cvvts. 

 9 181 

 8 15S 



Average of the 3 years - 

 Average increase over the 



unmanured plot - 

 Average estimated profit 



for the 3 years 



6 7S 



9 l6i 



3 H 

 £ s. d. 

 6 in 



9 



2 12} 



£ s. d. 

 5 6 3 



9 * 2 2 



3 4t 

 £ s. d. 



4 8 7 



Examining the question whether one of the constituents 

 may be omitted from the artificials given in addition to 

 10 tons of dung, the three years' experience indicated that 

 it was only where potash was absent that the yield and 

 profits were prejudicially affected. 



On other plots the effect of doubling one of the constituents 

 in the 6|- cwts. of a complete artificial dressing (in addition 

 to 10 tons of dung) was tried. In each case an average 

 increase of 8-|- to 10 cwts. of tubers was obtained at a cost of 

 8s. to 23s., but the superphosphate being the cheapest, the 

 greatest profit resulted from supplying a double allowance 

 of this manure. 



[ Yorkshire College, Leeds, and East and West Ridings joint Agricultural 

 Council, No 23.] 



Mash as a Food for Poultry. 



Mr. A. G. Gilbert, poultry manager to the Canadian Experi- 

 mental Farms, states in his Annual Report for 1901, that the 

 experience of the poultry department, after many years' trials, 

 points to the conclusion that the " mash/' as part of the daily 

 ration of poultry, is beneficial when judiciously used. When 



