164 



CHEMISTRY OF FARM PRACTICE 



a machine for mixing. The formula having been worked 

 out, and knowing that 1000 pounds makes a good quantity for 

 two men to manipulate, one-half of the materials necessary 

 to make a ton of fertilizer is poured in the middle of the 

 floor in alternate layers, beginning preferably with the acid 

 phosphate. Two men can perform the mixing most ad- 

 vantageously, one mixing with a hoe, and the other with a 

 spade or shovel. In the case of the mixture made at the 

 Station referred to, the mass was hoed and shoveled first 

 to one corner, then to the other corner, and once diagonally 

 across the 8 by 12 floor. Samples were taken of the un- 

 mixed materials and of the mixed materials. Table XV 

 may be taken as a typical analysis of the result of such 

 mixing. 



TABLE XV. AN EXAMPLE OF THE THOROUGHNESS 

 OF HOME-MIXING OF FERTILIZERS 



In making a home-mixture, it is very desirable to use 

 some material that acts as a good dryer. Cottonseed meal 

 is a most excellent dryer. Rape meal, linseed meal, and 

 muck are also good dryers. 



In the mixture mentioned, it was found that two men 



