178 



EXPERIMENTS UPON GRASS LAND 



nil 



Plot 



Fig. 35. — Percentage oi Arrhenatherum avenaceum in the Herbage of the Grass Plots. 

 First Crop, Season 1903. 



Unmanured. 



M'merah only. 

 4-1. Superphosphate. 

 I 8. No Potash. 

 I 7. Complete. 



Nitrogen only. 

 5. Amm.-salts. 

 17. Nitrate Soda. 



Nitrogen and M'merah, 

 4-2. No Potash ^A^,^. 

 9. Complete r ^^,,3 

 11. Excess N. } 

 14. Complete ; Nit. Soda. 



