TABLE I. SOLUTIONS OF TYPE L 



Partial volume-molecular concentrations and molecular proportions of 

 KH2PO*, Ca(N03)2, and MgSO* in 21 solutions all having a calculated 

 osmotic value of approximately 1.00 atm. at 25 °C., but differing (by in- 

 crements of % ) in salt proportions. 



The highest partial volume-molecular concentrations of the salts of this 

 table, that may be used in stock solutions (mixed) without change in the 

 molecular proportions, are obtained, in each case, by multiplying each value 

 given in the table by the factor 3.50. One liter of each of these strongest 

 stock solutions, properly diluted with distilled water, will make 3.50 liters 

 of nutrient solution with an osmotic value of approximately 1.00 atm. at 

 25°C. 



Molecular Proportions. 



Partial Volume-molecular Concentrations. 



R5C2 -(1.75 atm.)* 3.77 1.09 3.14 



.0180 



.0052 



.0150 



* Shive's solution was planned on the basis of osmotic proportions and 

 increments of 1/10 of the total osmotic value, so that the molecular pro- 

 portions when stated as eighths are not whole numbers. On the present 

 basis Shive's best solution is described as IR3.77 SI. 09 (1.75 atm.), and 

 its location is easily found on our triangular diagram. 



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