RIGHT USE OF LIME IN SOIL IMPROVEMENT 



When a limestone on the market will not 

 meet this test, some concession in price 

 should be expected. If the stone is not very 

 flinty, a 4O-mesh screen may be regarded as 

 affording a reasonably satisfactory test. 



An increasing percentage of coarser ma- 

 terial makes necessary an increase in amount 

 to meet the lime deficiency, and a distinct 

 concession in price is to be expected when a 

 lo-mesh screen is used in testing. At the 

 same time a careful buyer will use a 60- 

 mesh screen to determine the percentage 

 that probably has availability for the imme- 

 diate future. A coarsely ground article, 

 containing any considerable percentage that 

 will not pass through a lo-mesh screen, 

 must sell at a price justifying an application 

 sufficient to meet the need of the soil for a 

 long term of years, as the greater part has 

 no immediate availability, and only a heavy 

 application can provide a good supply for 

 immediate need. 



New York State Experience. A bulletin 

 of the New York agricultural experiment 

 station, published early in 1917, calls atten- 

 tion to the rapid increase in demand for 

 ground limestone in New York. Within 

 the last five years the number of grinding 



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