CYAN AM ID — MANUFACTURE, CHEMISTRY AND USES 89 



when care is taken to mix the fertilizer well with the soil, the 

 seed may be planted directly after the fertilizer is spread. 

 Even distribution of the Cyanamid is facilitated by previously 

 mixing it with two to three times its weight of damp earth. 



USE OF COMPLETE FERTinZER MIXTURES. 



Since most of the Cyanamid used in this country comes to 

 the farmer as an ingredient of mixed fertilizers, it is as a rule 

 not necessary to have special instructions for its use. From 

 the known chemistry of calcium cyanamide it is very probable 

 that when Cyanamid is mixed with acid phosphate, the phos- 

 phoric acid causes a considerable conversion of Cyanamid 

 nitrogen to the form of urea, (page 12). At any rate, the ordi- 

 nary practice in the use of mixed fertilizers is such that the 

 presence of Cyanamid nitrogen will not require any modifica- 

 tion of the usual practice. 



