3S0 



STATE BOARD OF AGRICULTURE. 



The trees grew rapidly for the first three years, until the roots reached 

 the clay subsoil, when a decided falling off in growth took place. This 

 falling off in height growth at such an early age is not characteristic of 

 the Norway spruce which is one of the fast growing trees. Nor- 



A Christmas tree 7.8 feet high, grown in 6 years from 4-year transplant stock in experi- 

 mental plantation. 



way spruce in nearby locations where the surface soil is deeper have 

 maintained a uniform height growth of about one foot per year. It 

 may safely be said that the slackening in gro'oi:h in this plantation 

 was due to the clay subsoil near the surface. 



