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COMMERCIAL MANURES 



I. NITROGENOUS MANURES. 



Name. 



Constituents of value. 



Harmful constituents. 



Dried flesh 



blood . 

 Shoddy and woollen 



waste . 

 Hair, horn and leather 



waste . 

 Rape and other oil-seed 



cakes . 



Sulphate of ammonia 

 Nitrate of soda 

 Nitrate of potash 

 Soot 



Calcium cyanamide . 

 Nitrate of lime . 



Organic nitrogen. 



Organic nitrogen (phosphoric 



acid). 



Ammoniacal nitrogen. 

 Nitric nitrogen. 

 Nitric nitrogen and potash. 

 Ammoniacal and organic 



nitrogen. 

 Nitrogen. 



Nitric nitrogen. 



Oily matters. 



Oil. 



Thiocyanates, arsenic. 

 Perchlorates, chlorides. 



Calcium carbide, sul 

 phides. 



II. PHOSPHATIC MANURES. 



III. NITROGENOUS PHOSPHATIC MANURES. 



