46 



The Feeding of Animals 



111 the first place, the straws contain more mineral 

 matter than the grains. It is very evident also that in 

 the straws there is much more potash, lime and silica 

 than in the grains, while phosphoric acid in most cases 

 exists in larger proportions in the latter. 



The roots and leaves of beets and turnips present a 

 striking difference in mineral content: 



Per cent in the dry matter 



Phos- Sul- 



Total Pot- Mag- Iron phoric furic 



Sugar beefs ^^^ ^^^ Soda Lime nesia oxide acid acid Silica 



Roots 3.8 2.03 .34 .23 .30 .04 .47 .16 



Leaves 14.8 3.90 2.05 3. 1.69 .08 .71 .79 



Fodder beets 



Roots 7.6 3.90 1.23 .28 .83 .06 .65 .23 



Leaves 15.3 4.71 2.98 1.63 1.46 .22 1. .86 



Turnips 



Roots 8.0 3.64 .79 .85 .30 .06 1.02 .90 



Leaves 11.6 2.73 1.10 3.83 .46 .18 .85 1.09 .45 IM 



.09 

 1.51 



Chlor- 

 ine 



.18 

 1.26 



.75 

 2.45 



.41 



There appears to be a tendency for mineral com- 

 pounds to accumulate in the leaves of plants, and leafy 

 plants are, as a rule, those which appropriate these 

 most freely. 



I 



