256 AGRICULTURAL EXPERLMENT STATIOX. [Jan. 



phosphates, etc.), a treatment which may be repeated from 

 time to time whenever practicable. 



9. A periodical application of burnt lime or carbonate of 

 lime has been found as a rule advantageous to lands used for 

 the cultivation of garden vegetables wherever an excessive 

 accumulation of organic vegetable matter is apt to occur 

 (from one thousand to fifteen hundred pounds per acre may 

 be used ) . The presence of a liberal amount of calcium car- 

 bonate in our cultivated lands is known to assist in many 

 instances in the lil)eration of plant food from the soil and 

 refuse vegetable material, and also to favor a beneficial bac- 

 terial life in the soil under cultivation. 



The subsequent tabular statement of the composition of 

 various garden crops, taken from the tables of E. Wolff and 

 from observations made at Amherst, may not be without 

 interest in this connection : — 



Relative Proportions of Phosphoric Acid, Potassium Oxide and 

 Nitrogen in Fruits and Garden Croj)s. 



