9 6 



Diseases of Truck Crops 



investigated as to the effect of fertilizers on seed, the 

 work of Hicks 1 will serve as a guide to the trucker. 

 Tables 12 and 13, adapted from Hicks, clearly show the 

 effect of chemical fertilizers on lettuce and radish seeds. 



Table 12 



Effect of Chemical Fertilizers on the Germination of Curled 

 Simpson Lettuce Seed 



Table 13 



Effect of Chemical Fertilizers on the Germination of Break- 

 fast Radish Seed 



Fertilizer Used 



Potash 

 Phosphoric acid 



How Applied 



In the rows 

 Mixed with the soil 

 In the rows 

 Mixed with the soil 



First Sprouts 



No sprouts 

 it it 



May 26 

 " 24 



Per Cent, of 

 Germination 



i-5 



i-5 



10.0 



95-o 



1 Hicks, G. H., U. S. Department of Agr., Div. of Botany., Bui. 

 24 = 5-15, 1900- 



