AN ABNORMAL ORCHARD SOIL 3 



When the plots were replanted in 1930, the treatment of Plots 11 and 13 was 

 changed to the following: 



POUNDS 



Plot 11 nitrophoska 160 



superphosphate 160 



muriate of potash 110 



Plot 13 tankage...... 240 



superphosphate.... 290 



muriate of potash 160 



The amounts of nitrogen, phosphorus, and potash in the annual applications 

 were kept very- nearly constant over the entire period of fifty j^ears. The only 

 radical change was that from gypsum to a "complete" fertilizer in 1931. 



Lime applications on the lower, west, half of the plots were made in 1899, 

 1904, 1907 and 1916, totaling 4J^ tons per acre, and in 1931 at the rate of 2 

 tons per acre. 



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