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UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



years, 1907 and 1908, all expenses being met by the Cudahy Ranch. 

 Applications were made as follows, each plot consisting, as said before, 

 of two rows or 42 trees : 



It will be noted that many of these applications were comparatively 

 large, costing in the vicinity of $1.00 per tree per year. No record of 

 the crop was kept until 1909, when a careful weighing was made of 

 the crop of each individual tree in the whole experiment. The detailed 

 results will not be given in this bulletin for the reason that they were 

 not sufficiently conclusive to warrant their publication. So far as the 

 effects of the various fertilizers were concerned no conclusions what- 

 ever could be drawn. This is due partly to the extreme variation in 

 yield of the individual trees, which completely obscures any effect 

 of fertilization, and also to the fact that even where fairly good com- 

 parisons could be made the fertilizer applied showed a surprising lack 

 of decided effect. The crop on the various trees in the experiment 

 varied from a minimum of less than one pound up to a maximum of 

 117.5 pounds. With such a range it is almost impossible to draw any 

 conclusions from the effects of the fertilizer, even when the crops of 

 the 42 trees in each plot were averagd. 



