THE FOREST NURSERY 233 



of separate nurseries, unless there is a well-marked difference 

 in the vegetation. It is important, however, that the nursery be 

 established at the lowest elevation in the forest over which the stock is 

 used because it is more accessible, stock of suitable size can be grown 

 in shorter time and at less cost, work can begin earlier in the season, 

 and there is much less danger of frost injury. 



There is no essential difference in the management and treat- 

 ment of temporary and permanent nurseries. In the latter, how- 

 ever, the original outlay can be greater as the cost can be spread 

 over a long term of years. 



4. FACTORS WHICH DETERMINE SUCCESS IN THE 

 PRODUCTION OF NURSERY STOCK 



The degree of success in the production of nursery stock for 

 forest planting is largely dependent upon the following: 



a. Efficient administration and supervision. 



b. The systematic execution of nursery operations in reference 

 to time and order. 



c. The selection of a suitable site. 



d. The economic and successful development of the site. 



e. The utilization of the best cultural methods. 



/. The utilization of the best lifting, storage, and packing 

 methods. 



g. The elimination of losses in the stock from preventable 

 causes. 



6. Administration and Supervision 



The success of a forest nursery is intimately bound up with its 

 administration and supervision. The administration must de- 

 termine the species, amount, and various classes of stock required 

 year after year for planting in the particular forest that it sup- 

 plies, or, in the case of commercial nurseries, that will find a 

 market. Superior judgment in these matters prevents great losses 

 through producing the wrong species or the wrong classes of stock, 

 and from growing more than is needed at one time and too little 

 at another. The administration provides plans for the distri- 

 bution of the output of the nursery by seasons, species and classes 

 of stock, often several years in c-dvance, and initiates and acts 

 upon all administrative features. 



