80 PROFITABLE RESULTS OF EXPERIMENTS. 



Manure applied. Produce reaped. 



1. Farm-yard manure alone, 30 tons, Potatoes, 9 tons 3 cwt. 



Oats, 61 bushels. 



Straw, 1 ton 16 cwt. 



Hay, 2 tons 5 cwt. 



Cost of Manure, 10, 10s. ; Value of produce, 36, 12s. 



2. Farm-yard manure, 14 tons, . Potatoes, 15 tons 1 cwt. 



Peruvian guano, 3 cwt., . . Oats, 70 bushels. 



Sulphate of magnesia, ^ cwt., . Straw, 2 tons 7 cwt. 



Gypsum, 1 cwt., . . . Hay, 2 tons 5 cwt. 



Cost of manure, 6, 18s. 6d. ; Value of produce, 50, 6s.* 



Balance in favour of the mixed manures, 17, 5s. 6d., or 5, 15s. 

 an acre every year. 



Again, two successive crops of potatoes and barley, treated in 

 three different ways in 1843 and 1844, gave the following 

 results : 



1. Manures applied per imperial acre 



a b c 



Farm-yard manure, Farm- yard manure, Farm-yard manure, 

 30 tons. 14 tons. 14 tons. 



Peruvian guano, 3 cwt. Peruvian guano, 3 cwt. 

 Sulphate of magnesia, 



T| cwt. 

 Gypsum, 1 cwt. 



Cost of , 10g> 6 12g< Q 18g 6(J 



manures, ' 



2. Produce reaped per imperial acre 



or four and six pounds an acre respectively. 



* Potatoes reckoned at 40s. a ton, oats 2s. 6d. a bushel, straw 2s. a cwt., hay 

 3 a ton. 



t Potatoes reckoned at 40s. a ton, barley at 3s. 6d. a bushel, and straw at 

 Is. 6d. a cwt. 



