UNITED STATES DEPARTMENT OF AGRICULTURE 



„ BULLETIN No. 479 



Contribution from the Forest Service 

 HENRY S. GRAVES, ForeBter 



'ashing ton, D. C. 



PROFESSIONAL PAPER 



May 31, 1917 



NURSERY PRACTICE ON THE NATIONAL 

 FORESTS. 1 



By 0. R. Tillotson, Forest Examiner. 



CONTENTS. 



Page. 



atroduction 1 



actors influencing selection of a nurs- 

 ery site 1 



ize and arrangement of nursery 7 



utflt 10 



ursery operations 15 



Page. 

 Removal of planting stock from nurs- 

 ery 64 



Diseases and injuries in nursery 68 



(Fertilizers 79 



Costs of operations 86 



INTRODUCTION. 



Each year about 10,000,000 forest-tree seedlings or transplants are 

 equired for the reforestation operations on the National Forests, 

 ^he stock supplied for these operations must be of the proper size 

 nd species, of high grade, and available for use on very short notice, 

 furthermore, production of the stock under seasonal conditions cor- 

 esponding as closely as possible to those at the planting site is 

 lesirable. In order that these requirements may be met and that at 

 he same time the stock may be produced -at a low cost it is neces- 

 ary not only that the nurseries be properly located and of the right 

 ize, but also that efficient and economical methods of nursery prac- 

 tice be employed. 



FACTORS INFLUENCING SELECTION OF A NURSERY SITE. 



Choosing a site for a large nursery is difficult, especially in a 

 nountainous country, where all of the conditions favorable to nurs- 

 sry operations are seldom encountered on one area. The principal 



1 This bulletin represents the results of the study and experience of many different mem- 

 bers of the Forest Service. The author's part has been to compile, weigh, and harmonize 

 :hese results. The collection of forest-tree seed and field seedling and planting are covered 

 n Bulletin No. 475 of the IT. S. Department of Agriculture, " Reforestation on the Na- 

 ional Forests.'* 



Note. — This bulletin should prove of interest and value to all who are engaged in 

 lursery work with forest trees. 



63186°— Bull. 479—17 1 



