EXPERIMENT STATION 



579 



The average amount of dry matter in well gi'own carrots 

 is usually stated (E. Wolif ) to be 15 per cent, of the weight 

 of the fresh root ; in our case it varied from 9 to 12 per 

 cent,, according to the size of the root tested. Large speci- 

 mens of roots contain frequently a smaller amount of dry 

 vegetable matter than smaller ones equally matured. Cul- 

 tivation, manuring, season and time of seeding, aside from 

 fitness of the soil, affect seriously the general character of 

 the root crops. In our case, soil rand state of fertilization 

 were favorable, — frequent rains towards the close of the 

 summer season had favored apparently in an exceptional 

 degree the growth of the leaves at the expense of a timely 

 maturing of the roots. 



Analysis of Carrots with reference to Fertilizing Constituents. 



Moisture at 100° C, . 



Ferric oxide, 



Phosphoric acid (6 cents ^ev pound), . 

 Magnesium oxide, .... 



Calcium oxide, 



Potassium oxide (4| cents per povmd), 



Sodium oxide, 



Niti'ogen (17 cents per pound), . 

 Insoluble matter, 



Per cent. 



90.02 

 0.01 

 0.10 

 0.02 

 0.07 

 0.54 

 0.11 

 0.14 

 0.01 



Valuation per 2,000 pounds, 



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