184 HATCH EXPERIMENT STATl(3N. [Jan. 



Compilation of Analyses or Fruits, Garden 

 Crops and Insecticides. 



H. D. HASKINS. 



1. Analyses of fruits. 



2. Analyses of garden crops. 



3. Relative proportions of phosphoric acid, potassium oxide 



and nitrogen in fruits and garden crops. 



4. Analyses of insecticides. 



The results of chemical analyses of twenty prominent gar- 

 den crops (gi'een) show the following average composition, 

 expressed in parts per thousand : — 



Nitrogen, ......... 4.1 



Potassium oxide, . . . . • . . 3.9 



Phosphoric acid, . . . ... . • 1.9 



A computation of the results of the above analyses of 

 green garden vegetables shows the following relative pro- 

 portion of the tliree essential ingredients of plant food : — 



Nitrogen, 2.2 



Potassium oxide, 2.0 



Phosphoric acid, . 1.0 



The weight and particular stage of growth of the vege- 

 tables when harvested control, under otherwise corresponding- 

 conditions, the actual consumption of each of these articles 

 of plant food. Our information regarding these points is 

 still too fragmentary to enable a more detailed statement 

 here beyond relative proportions. It nmst suffice for the 

 present to call attention to the fact that a liberal manuring 

 within reasonable limits pays, as a rule, better than a scanty 

 one. (C. A. Goessmann.) 



