98 



Journal of Agriculture, Victoria, [11 Feb., 1918. 



Table V. 



NiTRO-SuPERPHOSPHATE. 



This fertilizer is another mixture, made by (a) reinforcing super- 

 phosphates with ammonium sulphates or nitrate of soda and a little 

 organic refuse containing slowly available nitrogen, or (b) reinforcing 

 superphosphate with dried blood. The samples collected analyzed well 

 up to the guarantee, and a glance at Table V. will show that the value 

 of the fertilizer supplied was satisfactory. The fact remains, however, 

 that the unit value of nitrogen in the ammonium sulphate, nitrate of 

 soda or dried blood, as the case might be, was considerably increased by 

 admixture. 



Table VI. 

 Market Garden Manure. 



This fertilizer is simply another admixture of superphosphate, am- 

 monium sulphaite, and organic nitrogenous refuse. It contains a fair 

 amount of nitrogen, and is perhaps a serviceable mixture. The 

 analyses of the samples collected show that the manure is well above 

 the guarantee, but the price charged exceeds the calculated value by 

 approximately 15s. per ton (see Table VI.), and affords another example 

 of how the unit values are increased in " mixed " fertilizers. - 



