90 Dilute Acids and Phosphoi'ns Compounds in the Soil 



Table III {continued). Amounts of P^Or, extracted from Soils hy dilute 

 Nitric Acid of varying strength acting for different jyeriods of time. 



Agdell SoiL 100 gms. to 1000 c.c. of acid. Temperature 23° C. 



Equivalents of acid neutralised in the above experiments. 



Hoos 2 6* {50 gms. used per 1000 c.c. of acid hut results 

 adculated to 100 gms.). 



