264 Report of the Department of Chemistry of the 



Dry matter produced. — Determinations of dry matter, P 2 5 and 

 K 2 were made in the crops from each box and the tables which 

 follow give the results of these analyses. The figures are the average 

 of two boxes in most cases, and show the yields of dry matter, amounts 

 of P 2 5 or K 2 taken up and the quantities of dry matter produced 

 for each milligram of P 2 6 or K 2 taken up by the plants. 



Table VI. — Dry Substance Produced in Plant-food Requirement Experiments: 

 PjOo in Varying Amounts, Other Elements in Full Supply. 



BARLEY. 



PEAS. 



