32 



N. H. AGR. EXPERIMENT STATION. 



[Bulletin 153 



12. The inability of apple trees to produce fruit buds when grown in 

 sod as compared with cultivation has been clearly and completely proven. 

 Where the trees received only one year's cultivation in three, they produced 

 three times as many apples as were produced under sod. (Compare plots 1 and 

 2, table 18, and all other plots with plot 1, table 15.) 



13. A general review of all results for 1910 indicates that a plentiful supply 

 of moisture (as a result of conservation by culti vation) was the most influential 

 factor in stimulating the production of fruit buds. 



14. The addition of nitrogen in the form of a cover-crop appeared to be 

 the second most important factor in stimulating the production of fruit buds. 



Bs As to Secondary Effects of the Treatments. 



1. While fertilizers failed to stimulate a greater production of fruit buds 

 they clearly improved the size and quality of the fruit. (See No. 1 apples, 

 table Xo. 15 and charts Nos. 4 and 5.) 



2. The largest quantity of No. 1 fruit per tree was produced in the limed 

 plot. This plot was, of course, fertilized, each section receiving the fertilizer 

 treatment of the plot which crossed it. (See charts Nos. 4 and 5.) 



3. The next largest quantity of No. 1 fruit per tree was produced in the 

 plot which received the excess of potash. (See table No. 15 and charts Nos. 

 4 and 5.) 



4. The fewest No. 1 apples were produced by the sod plot. (See table 

 No. 15 and charts Nos. 4 and 5.) 



5. The most highly colored apples were produced by the sod plot. 



6. Among the fertilized plots the excess phosphoric acid plot produced the 

 smallest apples, though the fruit ran uniformly of good quality. 



C. As to Effect of Spraying. 



1. All plots were sprayed alike. The relatively small number of buds 

 produced by the sod plot would indicate that spraying had at least only an 

 indirect influence on fruit bud formation. 



TABLE NO. 21. 

 Average Number of Apples per Tree in Each Plot in 1908, 1909, 1910. 



PLOT 1. 



