THE ADAPTATION OF THE PLANT TO THE SOIL. 9 

 Table I. 



Percentage Composition of the AsJi of Mangolds grown i)i various localities. 







Uumanured 



Grown 



Grown 





Long 









near 



30 miles 





Eed 









the 



from 





• 



1 



2 



3 



sea 



the sea 



Pure ash 



7-84 



7-59 



5-48 



10-90 



6-72 



5-39 



Ferric oxide ..... 



0 71 



0-36 



0-39 



0-60 



U DO 



1 .OA 



Lime 



2-77 



3-25 



3-50 



2-58 



3-35 



7-53 



Magnesia ..... 



3-56 



5-84 



4-63 



2-69 



2-69 



3-23 



Potash 



37-06 



64-52 



66-80 



38-33 



11-21 



18-40 



Soda 



33-88 



6-86 



10-91 



31-17 



56-40 



43-97 



Phosphoric acid .... 



3-97 



1302 



8-20 



8-25 



5-00 



7-57 



Sulphuric acid .... 



4-22 



2-99 



2-54 



2-41 



6-04 



3-06 



Chlorine 



10-98 



2-43 



3-91 



18-13 



15-29 



12-30 



Silica 



5-24 



0-68 



0-36 



0-31 



2-74 



5-42 



Table II. 



Percentage Composition of the Ash of different Plants grown at Rothamsted. 





Wheat 



Barley 



Clover 

 (1st crop) 



Swedes 



Mangold 



Ferric oxide . 



0-95 



104 



105 



2-38 



0-89 



Lime .... 



4-30 



9-13 



36-98 



23-43 



9 72 



Magnesia 



3-04 



4-34 



5-00 



2-76 



3-27 



Potash .... 



17-42 



15-35 



13-32 



26-24 



29-68 



Soda .... 



. . 0-11 



2-31 



0-70 



3-52 



16-72 



Phosphoric acid . 



. : 10-99 



11-74 



3-54 



6-76 



10-23 



Sulphuric acid 



3-60 



3-98 



2-08 



13-33 



4-51 



Carbonic acid 





1-61 



34-39 



16-14 



17-07 



Chlorine 



! ] 1-60 



1-75 



2-51 



3-91 



8-65 



Silica .... 



. 58-35 



49-14 



1-02 



2-43 



1-20 



Table III. 



Percentage Cojuposition of Typical Soils of Various Formations. 





Bagshot 

 Sand 



London 

 Clay 



Chalk 

 from 

 Thanet 







Thanet 

 Sand 



Brick 

 Earth 



Folke- 

 stone 

 Sand 



Rag- 

 stone 



Weald 

 Clay 



Moisture .... 



0-94 



5-09 



2-93 



1-62 



- 



2-45 



0-98 



2-03 



6-09 



Loss on ignition 



4-44 



7-42 



5-06 



3-46 



4-65 



4-53 



4-82 



10-59 



Nitrogen .... 



0-006 



0-172 



0-194 



0-156 



0-120 



0-170 



0-187 



0-327 



Alumina .... 



0-11 



11-75 



3-60 



2-34 



3-33 



Nil 



3-58 



10-45 



Oxide of Iron . 



0-32 



6-04 



2-44 



2-10 



2-50 



0-97 i 



3-55 



5-90 



Oxide of Manganese . 



Nil 



0-135 



0-023 



0-135 



0-054 



Nil 



0-05 



0-034 



Magnesia .... 



0-03 



1-24 



0-64 



0-26 



0-52 



0-074 



0-40 



0-55 



Lime .... 



0-08 







0-58 



0-82 



0-34 



2-14 



2-11 



Carbonate of Lime . 



Nil 



0-22 



3-70 



0-33 



0-40 





3-13 



1-76 



Potash .... 



0-062 



1-44 



0-459 



0-354 



0-305 



0-093 



0-604 



0-757 



" Available " Potash . 





0-035 



0-015 



0-019 



0-010 



0-006 



0-028 



0-014 



Phosphoric acid 



0-017 



0-111 



0-094 



0-095 



0-074 



0-047 



0-373 



0-180 



" Available " Phosphoric 



















acid .... 





0-012 



0012 



0-044 



0-008 



0005 



0-184 



0014 



Sulphuric acid . 



0-014 



0-054 



0-040 



0-010 



0-03 



0-069 



005 



0-138 



