174 EXPERIMENTS UPON GRASS LAND 



3 4-18 7 S 17 4-2 9 II 14 



Fig. 33. — Percentage of Festuca oi'ina in the Herbage of the Grass Plots. 

 First Crop, Season 1903. 



Unmanured. 



Minerals only. 

 4-1. Superphosphate. 

 8. No Potash. 

 7. Complete. 



yUroffen only. 

 5. Amm. -salts. 

 17. Nitrate Soda. 



Nitrogen and Minerals. 

 4-2. No Potash ^ . 



9. Complete r , 

 11. Excess N. J '^^^'• 

 14. Complete; NIL Soda. 



