THE HORTICULTURAL SOCIETY OF NEW YORK 



insoluble forms of nitrogen, providing there was present an avail- 

 able supply of carbohydrates. 



"9. Buckwheat, Soybeans, Radish and Salvia of the varieties 

 used, however, were limited in the synthesis of nitrates to insol- 

 uble forms of nitrogen by a 7-hour day as it occurred in the green- 

 house, even though there was present an available supply of carbo- 

 hydrates. 



"10. A large degree of carbohydrates in Tomato plants al- 

 ready very high in carbohydrates was apparently coupled with de- 

 composition of insoluble nitrogen even though there was no exter- 

 nal supply of nitrates available to the plant. 



"11. In the Tomato, insoluble nitrogen was not decomposed to 

 nitrates." 



30 

 28 

 26 

 24 

 22 

 20 

 16 

 16 



2 14 



sz 



u 



^ 12 

 10 

 6 

 6 

 4 

 2 

 



Days 



2S 



35 



Fig. 3— Growth curves for the following vegetable seedlings grown in pots— 

 A-X and B-Xj Beans Stringless Green Pod. 

 A-X) and B-X., Pea First-of-all. 

 A-X3 and B-X3 Sugar Corn Golden Bantam. 

 A-X and B-Xj Cabbage Early Jersey Wakefield grown in flats. 



Z1 



