222 MANURES FOR OTHER TREES 



Pines are valuable timber trees, and a special 

 manure for their proper cultivation is mentioned 

 under the head of Norway Spruces. 



Pistacias are benefited by using kainit, iron 

 sulphate and guano. 



Platanus is improved by using a special 

 manure containing guano, magnesium sulphate, 

 kainit, and a small quantity of iron sulphate. 



Poplars are improved by using a special manure 

 containing potassium nitrate, lime superphosphate, ' 

 and iron sulphate. Young trees are greatly bene- 

 fited by this manure. 



Punicas. The special manure of these trees 

 contains guano or bone meal, magnesium sulphate, 

 kainit and iron sulphate. 



Ribes is improved by using a special manure 

 containing guano, silver sand, kainit and iron 

 sulphate. 



Rhamnus is improved by using guano, kainit 

 and iron sulphate. 



Rhododendrons should be watered from time 

 to time with a liquid manure containing ^ oz. of 

 nitrate of soda, |- oz. of kainit, and ^ oz. of iron sul- 

 phate to 2 gallons of water. Manures containing 

 much calcareous matter should be avoided, as they 

 are detrimental to the proper growth of rhododen- 

 drons. The liquid manure maybe applied over the 



