NP— Xitrogen-phosphoric acid treatment. Note lack of clover in 

 stand. Yields secured by clipping- have been approximately the same 

 as from plots treated with nitrogen-potash, but the grass is less pal- 

 atable and less closely grazed. 



NK — Nitrogen-potash treatment, a well-balanced sod with both 

 clover and grass, and very closely grazed. 



NPK — Nitrogen-phosphoric acid-potash treatment gave the high- 

 est yields wath about the same balance between grass and clover as 

 the nitrogen-potash treatment. 



