182 



EXPERIMENTS UPON GEASS LAND 



Plot 



4-2 9 II . 14 



FIG. 37. Percentage of Trifolium repens, Trifolium pratense, and Lotus corniculatus 

 (together) in the Herbage of the Grass Plots. First Crop, Season 1903. 



Unmanured. 



Minerals only. 

 4-1. Superphosphate. 

 8. No Potash. 

 7. Complete. 



Nitrogen only. 



5. Amm. -salts. 



17. Nitrate Soda. 



Nitrogen and Minerals. 



4-2. No Potash ^i Am 



Amm.- 

 9. Complete 



11. Excess N. J ' 



14. Complete ; Nit. Soda. 



