200 



State Horticultural Society, 



PLANT FOOD USED DURING A SEASON'S GROWTH BY A MATURE FRUIT TREE 



IN FULL BEARING. 



(Bulletin New York Agricultural Experiment Station No. 265.) 



Variety. 



Nitrogen, 

 pounds. 



Phospho- 

 ric acid, 

 pounds. 



Potash, 

 pounds. 



Lime, 

 pounds. 



Magnesia, 

 pounds. 



Apple . 

 Peach . 

 Pear... 

 Plum . 

 Quince 



1.47 



.62 

 .25 

 .25 

 .19 



0.39 

 .15 

 .06 

 .07 

 .06 



1.57 

 .60 

 .27 

 .32 

 .24 



1.62 

 .95 

 .32 

 .84 



.27 



0.66 

 .29 

 .09 

 .11 



.08 



PLANT FOOD USED PER ACRE BY DIFFERENT FRUIT TREES AND BY WHEAT. 

 (Bulletin New York Agricultural Experiment Station No. 265.) 



The peach and the apple, the most important orchard trees 

 of this State, stand high as to the requirements per acre, the peach 

 requiring (or using) an unusual amount of nitrogen; whereas the 

 pear stands low in important plant food constituents. This com- 

 parison is not, however, strictly fair, since in these data are in- 

 cluded, in the case of the fruit trees, leaves and new wood; yet 

 most of the former and some of the latter are gradually returned 

 to the soil. We should, therefore, examine the following table : 



