38 



WORCESTER. 



SOIL TEST WITH FERTILIZERS FOR CORN. 



B}' Pliny Moore. 



FERTILIZERS 



Nothing, 

 Nitrate of Soda, 

 Dissolved Bone-black, 

 Nothing, 

 Muriate of Potash. 



C Nitrate of Soda, 



( Dissolved Bone-black. 



( Nitrate of Soda. 

 \ Muriate of Potash, 

 Nothing, 



r Dissolved Bone-black 

 \ Muriate of Potash, 



I Nitrate of Soda, 

 Dissolved Bone black 

 Muriate of Potash. 

 Land Plaster, 

 Nothing, 



Barnyard Manure, 

 Lime, 

 Nothing, 



Gain or loss com- 

 pared with 

 Nothing Plots 

 per acre. 



290 

 -10 



400 



-40 



620 



-40 



1010 

 370 



Average of nothings, liard corn 43.1 bushels ; soft corn 6.9 bush- 

 els ; and stover 2836 pounds. 



The field selected for this experiment was a rather elevated southern 

 slope with very moderate pitch. The soil was good medium loam. 

 It had been in grass four years without manure, but proved to be very 

 fertile. Unfortunately, however, it turned out to be quite uneven in 

 quality ; apparently deteriorating steadily from one side (Plot No. 1) 

 to the other, as shown by the diminishing yield of the nothing plots. 

 The effect of this inequality shows. itself chiefly in the comparison of 

 barn-yard manure with complete fertilizer ; and is favorable to the 

 former. It does not, I believe, materially influence the comparisons 

 between nitrogen, phosphoric acid and potash. 



In JuW, Plot No. 10 was judged to be superior to No. 13, and no 

 striking difference was noted between the other plots. The influence 

 of the fertilizer was apparently less noticeable here than in any other 

 experiment, and quite naturally since the soil was already compara- 



