RIGHT USE OF LIME IN SOIL IMPROVEMENT 



excellent form was afforded by hardwood 

 ashes, but this product has ceased to have 

 any important value to our agriculture. 

 The chief supply on the market is low in 

 quality, containing moisture and dirt in 

 considerable amount, the form of lime 

 being changed from an oxide to the hydrate 

 and carbonate. 



Gas Lime. Prof. E. B. Voorhees, in 

 "First Principles of Agriculture," says: 

 "Gas lime is also frequently used as ma- 

 nure; in gas works, quicklime is used for 

 removing the impurities from the gas. Gas 

 lime, therefore, varies considerably in com- 

 position, and consists really of a mixture of 

 slaked lime, or calcium hydrate, and car- 

 bonate of lime, together with sulfites and 

 sulfides of lime. These last are injurious to 

 young plant life, and gas lime should be 

 applied long before the crop is planted, or 

 at least exposed to the air some time before 

 its application. The action of air converts 

 the poisonous substances in it into non- 

 injurious products. Gas lime contains on 

 an average 40% of calcium oxide, and usu- 

 ally a small percentage of nitrogen." 



Lime After Magnesium Removal. A 

 by-product in the removal of magnesium 



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