Purchase of Fertilizers 



169 



Formulas. 



The following formulas are used for the sole purpose 

 of illustrating the differences that may exist between 

 high-grade and low-grade mixtures, and not as indicating 

 what should be used to make a good or poor mixture. 



FORMULA No. 1 

 POUNDS 



Amount Material 



500 Ibs. nitrate of 

 soda contains 



1100 Ibs. acid phos- 

 phate contains 



400 Ibs. muriate of 

 potash contains 



Potash 



Price 

 100 Lbs. 



Cost 



80 



80 costs $2.50 = $12.50 



180 180 costs .60 = 6.60 



200 200 costs 2.00 = 8.00 



2000 Ibs. mixture 

 contains 



^20 = 100 Ibs. mix- 

 ture contains 



Guaranteed com- 

 position 



80 180 200 460 and costs $27.10 

 4.0 9.0 10.0 and costs 1.355 



4.0 9.0 10.0 



250 Ibs. nitrate of 

 soda contains 



1000 Ibs. acid phos- 

 phate contains 



80 Ibs. muriate of 

 potash contains 



670 Ibs. make- 

 weight or filler 



FORMULA No. 2 



40 40 costs $2.50 = $6.25 



160 160 costs .60 = 6.00 



40 40 costs 2.00 = 1.60 



2000 Ibs. mixture 



contains 40 160 40 240 and costs 



-^ 20 = 100 Ibs. 

 mixture contains 4.0 8.0 2.0 and costs 



Guaranteed com- 

 position 4.0 8.0 2.0 



$13.85 

 .69 



