ARTIFICIAL MANURES 



us/ny CaCfl^ 



Oays of Decomposition 

 Hanure f^a.de From Corn 



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Days of Dec om position 

 /Manure Ma.de From Leoi'es 



of Otamposii, 



Figure 1. Temperatures During Period of Decomposition. Taicen at center of manure heaps 

 made of different organic materials. 



