Table 14. Experiment 3. Total nitrogen and ^hi incorporation into 

 soluble and insoluble fractions after 21 hours' exposure 

 to 0.5-mM ^^NHi+Cl or K^^Os (98 atom % ^ ^) . 



Treatment 



lit 



15 



N 



Insol- 

 uble 



Sol- 

 uble 



Total 



(ug/g dry wt.) 



Percent 

 of Total 

 N in In- 

 soluble 



-TZ^) 



Insol- 

 uble 



Sol- 

 uble 



N 

 Total 



Percent 

 of Total 

 N in In- 

 soluble 



(ug/g dry wt.) ---(%) 



Ammonium - No Aeration 



Shoots 



3415.0 



890.0 



4305.0 



79.3 



137.0 



161.0 



298.0 



46.0 



Roots 



1510.0 



730.0 



2240.0 



67.4 



174.0 



278.0 



452.0 



38.5 



Total 



4925.0 



1620.0 



6545.0 



75.2 



311.0 



439.0 



750.0 



41.5 



% of to- 



















tal in 



















shoots 



69.3 



54.9 



65.8 





44.0 



36.7 



39.7 





Ammonium 



- Aerated 















Shoots 



4015.0 



900.0 



4915.0 



81.7 



178.0 



161.0 



339.0 



52.5 



Roots 



1510.0 



840.0 



2350.0 



64.2 



180.0 



344.0 



524.0 



34.4 



Total 



5525.0 



1740.0 



7265.0 



76.0 



358.0 



505.0 



863.0 



41.5 



% of to- 



















tal in 



















shoots 



72.7 



67.2 



67.7 





49.7 



31.9 



39.3 





Nitrate - 



No Aeration 















Shoots 



3235.0 



900.0 



4135.0 



78.2 



32.0 



28.0 



60.0 



45.7 



Roots 



1260.0 



550.0 



1810.0 



69.6 



74.0 



96.0 



170.0 



43.5 



Shoots 



4495.0 



1450.0 



5945.0 



75.6 



106.0 



124.0 



230.0 



44.2 



% of to- 



















tal in 



















shoots 



71.9 



62.1 



69.6 





30.2 



22.6 



29.2 





Nitrate - 



Aeratec 

















Shoots 



1770.0 



780.0 



2550.0 



69.4 



7.0 



14.0 



21.0 



33.3 



Roots 



1030.0 



615.0 



1645.0 



62.6 



60.0 



114.0 



174.0 



34.5 



Total 



2800.0 



1395.0 



4195.0 



66.7 



67.0 



128.0 



195.0 



34.3 



% of to- 



















tal ■ in 



















shoots 



63.2 



55.9 



60.8 





10.4 



10.9 



10.7 























55 



