GRASS GROWING FOR PROFIT 25 
plot continued to receive annual applications of phos- 
phoric acid and Nitrogen. Where the large applica- 
tions of potassium salts had been made previously, 
it was found that timothy and clover were much 
better able to persist than elsewhere. The influence 
of the previous applications of potassium salts still 
A Side-delivery Rake in Operation. 
Highland Experimental Farms, New York. 
continued in a most striking manner even the third 
year, in all cases where large amounts were used at 
that time as was fully demonstrated by the much 
greater yields of hay. 
Considerable evidence was afforded that the 
earlier applications of sodium salts were now helpful 
by way of increasing the crops of hay in those cases 
where the previous applications of potassium salts 
had been large. It seems possible that this may 
