220 MANURES FOR OTHER TREES 



nitrate of soda, and -|- oz. of iron sulphate to 

 2 gallons of water. ^ 



Norway Spruces are useful timber trees^ and 

 as such require attentive cultivation. They are 

 benefited by being treated with a special manure 

 containing 2 parts of bone meal, 1 part each of 

 kainit, ammonium sulphate, magnesium sulphate, , 

 silver sand, and manganese sulphate, and -Jth 

 part of iron sulphate. From 3 to 6 lbs. of the 

 manure should be applied to each tree. 



Oaks are dioecious trees, and of great value for 

 their timber. A special manure for these trees 

 contains nitrate of potash, bone meal, and iron 

 sulphate. 



Oleanders^ should be watered twice a week, 

 from May to September, with a liquid manure 

 containing |- oz. of nitrate of soda and ^ oz. each 

 of lime superphosphate, kainit, and iron sulphate 

 to 2 gallons of water. This manure enhances the 

 colours of the blooms. 



Palms.^ These handsome plants are benefited 

 by being treated with a liquid manure containing 

 |- oz. each of nitrate of soda, iron sulphate and 



1 A. B. Griffiths, ibid., p. 35. 



2 Ibid., p. 36. 



3 A. B. Griffiths, ibid., p. 42, and Journal Chemical Society, 1887, 

 pp. 215—224. 



