172 EXPERIMENTS UPON GRASS LAND 



25*- 



20 



15 



10 



Plot 



17 



4-2 



14 



FIG. 32. Percentage of Anthoxanthum odoratum in the Herbage of the Grass 

 Plots. First Crop, Season 1903. 



Unmanured. 



Minerals only. Nitrogen only. 



4-1. Superphosphate. ; 5. Amm. -salts. 



8. No Potash. 

 7. Complete. 



17. Nitrate Soda. 



Kitrogen and Minerals. 

 4-2. No Potash i 



9. Complete > 

 11. Excess N. J 

 14. Complete ; Nit. Soda. 



