VARIOUS MANURES. 



149 



of exhausting them if continued, and even then with 

 proper fertilizers they can be renewed. 



Mr. Vivien contends that the most rational calcula- 

 tion for a fertilizer is to ascertain what the soil con- 

 tains, and combine this with a manure in such a man- 

 ner that the total would have for composition : — 



The above will, without doubt, give excellent re- 

 sults. Mr. George Yille considers that a complete 

 fertilizer, composed as follows, is most desirable for 

 beet culture : — 



Superphosphate of lime 

 Chloride of potassium 

 Sulphate of ammonium 

 Nitrate of soda 

 Sulphate of lime 



400 kilog. (880 lbs.) ] 



200 " (440 " ) j 



200 " (440 " ) )- 21 acres. 



300 " (660 " ) I 



200 " (440 " ) J 



On these soils the roots had been planted for eight successive years. As 

 ghown with the fertilizer it has continued to give good results, whilst on the 

 ordinary soil left to itself having an extra fertility, the yield has decreased, but 

 the saccharine quality of the root is augmented. In this experiment ]\Ir. Pag- 

 noul made use of a chemical fertilizer composed as follows : — 



Superphosphates ....... 700 k. 



Nitrate of soda 400 



Nitrate of potassa ....... 300 



Sulphate of ammonia . . . . . .100 



Chloride of potassa ....... 100 



1600 



