88 



TOBACCO LEAF. 



fail to find an intimate connection between the two, as 

 is explained below. 



What Tobacco Takes From the Soil This has been 

 very carefully determined by Johnson for Connecticut- 

 grown seedleaf, and by Davidson for Virginia-grown 

 tobaccos, as appears in the subjoined table. The seed- 

 leaf crop mentioned was grown from 8000 plants on one 

 acre, yielding an average of 1875 pounds of pole-cured 

 leaves (or 1400 pounds of water-free leaf), and 3200 

 pounds of pole-cured stalks (or about 1300 pounds of 

 water-free stalks). Davidson's average of analyses of 

 Bradley broadleaf, Goldfmder, White Burley and Yellow 

 Orinoco, shows a fair crop of Virginia tobaccos to be 

 1000 pounds per acre of barn-cured leaf (or 928 pounds 

 of water-free leaf), and 353 pounds of cured stalks (or 

 334 pounds of water-free stalks) : 



Table I. POUNDS OF PLANT FOOD KEMOVED FROM THE SOIL BY 



THE TOBACCO CROP GROWN ON ONE ACRE. 



The Connecticut crop of 1875 pounds of cured leaf 

 takes relatively large quantities of nitrogen (100 pounds), 

 potash (140 pounds) and lime (100 pounds), and very 

 little phosphoric acid (16 pounds). The Virginia leaf 

 also draws heavily on these elements, and a crop of Vir- 

 ginia tobacco yielding the same weight (1875 pounds of 

 leaf) contains, of nitrogen 98 pounds, potash 120 pounds, 



