THE FOREST NURSERY 



311 



years. When they remain in the transplant beds but 1 year, 

 they are spaced only 2 inches in the rows. 



Most conifers when transplanted after 1 or 2 years in the seed- 

 bed can be safely set at l^-inch intervals in the rows when 

 they remain but a single year in the transplant beds. Only the 

 most rapidly growing species like larch require a wider spacing. 

 When the plants remain in the transplant beds over the second 

 year they should have at least twice the space in the rows. Broad- 

 leaved species when transplanted require a wider spacing. 



The following table shows the closest spacing in the transplant 

 beds that can be practiced in the production of first-class stock. 

 Wider spacing is usually more costly as fewer plants are produced 

 on a given area of transplant bed, but when wider spacing makes 

 cultivation less expensive through the use of hand or horse culti- 

 vators it often is justified. 



TABLE OF SPACING IN TRANSPLANT BEDS 



Species. 



Age of 

 seedlings 

 in years. 



Space be- 

 tween rows 

 in inches. 



Spacing in 

 rows in 

 inches. 



Time in 



transplant 



beds in 



years. 



Whjte pine 1 



White pine 2 



White pine 2 



Scotch pine 1 



Scotch pine 2 



Scotch pine 2 



Red pine 2 



Red pine 2 



Jack pine 1 



Jack pine 2 



Jack pine 2 



Yellow pine 1 



Yellow pine 2 



Yellow pine 2 



Norway spruce 2 



Norway spruce 2 



Norway spruce 3 



Sitka spruce 2 



Engelmann spruce 2 



Douglas fir 2 



Douglas fir 2 



White fir 2 



European larch 1 



Red oak 1 



Beech 1 



White ash 1 



Sugar maple 1 



6 



6 



8 



6 



6 



10 



6 



6 



6 



6 



10 



6 



6 



10 



6 



6 



8 



6 



6 



6 



6 



6 



8 



12 



12 



12 



12 



3 



4 



H 

 3 



H 



3 



4 



H 



3 



4 



H 



3 



3 



if 



3 



U 

 4 



4 

 6 

 6 



4 



2 



1 

 2 

 1 

 1 

 2 

 1 

 2 

 1 

 1 

 2 

 1 

 1 

 2 

 1 

 2 



1-2 

 2 

 2 

 1 

 2 

 2 

 1 

 1 

 1 

 2 

 1 



