176 



THE ANALYSIS OF MANURES. 



VIII. 



Name. 



II. PHOSPHATIC MANURES. 



Constituents of value. 



Harmful constituents. 



Basic slag 



fCitrate - soluble phos- 

 phorus pentoxide 

 (lime), also degree 

 of fineness of divi- 



sion. 

 Phosphorite and copro- Insoluble 



phosphorus Iron and alu- 



lites 



pentoxide. 



mma 

 ides, 



fluor- 

 if for 



"super, 

 manufacture. 



Precipitated phosphate Ditto. 

 Bone ash, bone black... Ditto. 



Mineral superphos- Soluble, insoluble, and Iron and alu- 



phate citrate-soluble phos- mina, arsenic, 



phorus pentoxide. 



III. NITROGENOUS PHOSPHATIC MANURES. 



Bone dust and bones... \ Insoluble phosphorus Sand. 



Spent animal charcoal V pentoxide and or- 



Fish manure .. J ganic nitrogen. Oil, sand. 



Nitrogenous guanos ...' 

 Dissolved ,, 



Arnmoniated , , 

 Dissolved bones 



Soluble, citrate-soluble, 



and insoluble phos-^ Arsenic, 

 phorus pentoxide, I excessive 

 organic and ammo- 1 quantity of 

 niacal nitrogen. J calcium 

 sulphate. 



IV. POTASH MANURES. 



Potassium chloride and 

 sulphate ... 



Kainite 

 Potashes 



Potassium nitrate 

 Eefuse from 



Potash. 



^Excess i ve 

 I quantities of 

 I sodium and 

 J magnesium 

 chlorides. 



. Potash, nitric nitrogen, 

 wool Potash, organic nitro- 

 gen. 



