INSPECTION OF COMMERCIAL FERTILIZERS 43 



Cotton Hull Ashes and Wood Ashes. 



Ground Tobacco Stems. 



Fish Organo 4-3- 



* This product is said to be a decomposed mixture of fish and cocoa shells. The water insolu- 

 ble organic nitrogen shows an activity of 80.20 9"o by the neutral permanganate method. The 

 passing mark is 80. There are only traces of chlorine present and the fertilizer is slightly alkaline 

 in reaction. For most cultivated crops it should be supplemented by the appropriate amount of 

 superphosphate and potash salt. 



