Kew i'oKK Agricultural Experiment Station. 



245 



Plant Food Supplied. 

 Barley Roots (3J. 



Complete fertilizer 



All but soda 



All but potash 



All but potash and so, 'a. . 



Only nitrogen 



Nothing 



Tomatoes (1). 

 Complete fertilizer. ....... 



All but soda 



All but potash. 



All but potash and scd.;. . 



Only nitrogen 



Nothing 



Peas (1). 



Complete fertilizer 



All but soda 



All but potash 



All but potash and scd.i. . 



Only nitrogen 



Nothing 



Peas (2). 



Complete fertilizer 



All but soda 



All but potash 



All but potash and soda . . 



Only nitrogen 



Nothing 



In order to present the results reached in as concise and clear 

 a statement as possible, averages derived from the preceding 

 tables are arranged, showing the relation between the way the 

 plants were fed and the jield and composition of the dry matter 

 produced. 



