No. 7. 



DEPARTMENT OF AGRICULTURE. 



533 



TABLE 3. 



FERTILIZER RESULTS, THREE EXPERIMENTS COMBINED, 1908. 



INFLUENCE ON YIELDS. TOTAL YIELDS, LBS. 



INFLUENCE ON COLOR. PER CENT. COLORED. 



75.9 



INFLUNCB ON SIZE. AV. WT. IN OZS. 



4.42 51.03 5.29 5'.01 5.22 5.45 51.22 41.97 5.51 5.05 5.65 4.87 5. IS 5.18 5.1S 



5.49 



Too variable to determine benefit on size. 



INLUENCE OP FERTILIZER ELEMENTS. PER CENT. BENEFIT. 



SECOND YEAR. 



By comparison of the results from the different combinations shown 

 in table No. 3, it is possible to obtain figures showing the influence 

 during the past season of the individual fertilizer elements. Their 

 effect upon yield and color is shown in table No. 4. 



TABLE 4. 



Element. Yield. Color. 



Nitrogen, 47.25 per cent. — 17.87 per cent. 



Phosphate (P2 05), 5.8 per cent. 1.56 per cent. 



Potash (K20) 19.00 per cent. 10.15 per cent. 



Manure, 59.7 per cent. — 11.7 per cent. 



Lime, — 22.9 per cent. — 4.6 per cent. 



This table shows that both nitrogen and stable manure have ma- 

 terially increased the yield and decreased the color of the fruit. It 

 also shows phosphates to have had but little influence on either 

 yield or color. This seems to be largely because this element failed 

 so completely on the plot where it was applied alone. Where it was 

 used in combination, phosphoric acid showed some distinctly bene- 

 ficial results. Potash has shown moderately beneficial results on 

 both yield and color, and lime has apparently decreased both. It is 

 hardly believable that lime actually has the harmful effect indicated 

 here, and it will be interesting to see whether or not the indication is 

 maintained in later developments. It is probably one of the tran- 

 sient conditions, which make necessary the long periods required in 

 orchard experiments. 



