VALUATION OF l-RRTILIZEKS I25 



Chemical Analysis. 



Per cent. 



Nitrogen as nitrates 0.50 



Nitrogen as ammonia i .30 



Nitrogen as organic 2.00 



Water soluble phosphoric acid 6.00 



Phosphoric acid soluble in aniraonium citrate (reverted) 1.80 

 Phosphoric acid insoluble (in water and ammonium 



citrate) i .50 



Potash as sulphate 0.40 



Potash as chloride 3.60 



The commercial valuation of the above fertilizer would be ob- 

 tained by multiplying each ingredient by 20 to change to a ton 

 basis, and multiplying this product by the trade value of each. 

 The sum of these values would be the total commercial value as 

 derived from the raw products. 



Commercial Valuation. 



Pounds Trade Coninier- 



per 100 Pound.s value cial value 



or per. per per lb. per 



cent. ton cents ton 



Nitrate nitrogen 0.50X20= 10 X 16.5 = f r.65 



Ammonia nitrogen 1.30X20= 26X17 = 4-42 



Organic nitrogen 2.00 X 20 ^ 40 X 19 = 7-6o 



Soluble phosphoric acid 6.00 X 20 = 120 X 4 = 4.80 



Reverted phosphoric acid 1.80X20^ 36 X 3-5 = 1.26 



Insoluble phosphoric acid 1.50 X 20 := 30 X 2 = 0.60 



Potash as sulphate 0.40 X 20 = 8X5 =^ o-4o 



Potash as chloride 3.60X20= 72 X 4.25= 3.06 



Total commercial value* — $23.79 



