88 THE SCHOOL BOOK OF FORESTRY 



to support forest cover. Because the soils and 

 climate of our National Forests are different, 

 special experiments have been carried on in 

 different places to decide the best practices to 

 follow. Two method of reforestation are com- 

 monly practiced. In some places, the tree seed 

 is sown directly upon the ground and, thereafter, 

 may or may not be cultivated. This method is 

 limited to the localities where the soil and moist- 

 ure conditions are favorable for rapid growth. 

 Under the other plan, the seedlings are grown in 

 nurseries for several years under favorable con- 

 ditions. They are then moved to the field and 

 set out in permanent plantations. 



