358 i- 



+ - DAP 

 o - M-MAP 

 » - S-MAP 



4 5 6 7 



P2O5 Cg/ft sq:> 



Figure 4.— Effect of DAP, M-MAP, and S-MAP on weight loss rate of pine needles. 

 (Equation for pooled data Is plotted.) 



10 



1 I 



2 r- 



+ - DAP 

 o - M-MAP 

 » - S-MAP 



4 5 6 7 



P2O5 Cg/ft sq> 



Figure 5.— Effect of DAP, M-MAP, and S-MAP on spread rate of pine needles. 

 (Equation for pooled data is plotted.) 



1 1 



14 



