701 



T. Fairley gives the following analysis of a sample : 



Moisture ... 16*46 



Organic matter and salts of ammonia 58' 10 



Phosphate of lime, magnesia, etc. '5'-?o 

 Calcium sulphate ... ... 0^96 



Alkaline salts ... ... ... 6-55 



Insoluble silicious matter ... 273 



lOO'OO 



Containing nitrogen ... ... 7*87 



Equal to ammonia ... ... 9-55 



These manures should be used at a rate of 5 cwt. per acre in 

 conjunction with potash and a small quantity of soluble phos- 

 phates and some ammonium sulphate. They should be placed in 

 the ground some weeks before the seed in autumn to allow them 

 plenty of time to ferment. 



Fish guanos are made in Norway with a large percentage of 

 potash. One firm manufactures two kinds of these manures cod 

 and potash, and herring and potash. The first is branded C.P. on 

 the bags, the other S.P. on the bags. The following are analyses 

 of the two brands : 



C.P. Brand. S.P. Brand. 



Nitrogen (equal to ammonia) ... 7*0 7*5 



Phosphates (fish bone) ... 2O - o 8 - o 



Potash sulphate ... ... i5'o 15-0 



Magnesia ... ... ... io'O lO'O 



Sand ... ... ... ro ro 



Water ... ... ... 5-0 5-0 



They are recommended for cereals, roots and leguminous crops r 

 spread broadcast on the land and harrowed in. They are also recom- 

 mended for vegetables, using 7 cwt. to the acre. 



There is no doubt that the fish manures are valuable, although 

 slow in their action in the ground. They are cheap manures, and to 

 be compared with the high class manures, they must be cheap to 

 come into general use. With so much fish all along our coast, and 

 the amount of waste, not only from those fish that are not saleable, 

 but also from those that are saleable, I am surprised that something 

 has not been done to convert these valuable waste products into 

 readily saleable manures. I am sure it would prove a remunerative 

 business to any company or firm undertaking the making of them. 



These manures are sometimes used by unscrupulous 

 manufacturers to mix with superphosphates with the view of adding 

 nitrogen to their superphosphates. The analysis would not show 

 whether the nitrogen was from bones or fish. The nitrogen in 

 fish is not so valuable as that in bones. 



