The Manure Pile 341 



compact soils, the latter may be made to act as compost 

 heaps, and to transform both the organic matter and 

 the nitrogen with the greatest degree of economy. It 

 should be remembered, however, that this transforma- 

 tion in the soil itself may be unsatisfactory when acid 

 conditions prevail, either on account of imperfect drain- 

 age or the use of ammonium sulfate in large quantities. 

 A generous use of lime may be depended upon, in such 

 cases, to correct the existing defects. 



