PLANTING. 



G7 



In general the freest growing plantations require to have a certain 



tiber of trees taken out by the time they have attained to eight years of 



from planting. On forest-tree soils of a medium quality, the 



ten or twelve years may be attained by the young trees before thinnino- 



is necessary ; but should fifteen years elapse before the trees demand 



iinning, it will be found that the plantation has been imperfectly formed. 



certain rule can be given to determine the number of trees to be 



!d out periodically, which will apply to all plantations and to every kind 



t-tree in them. A well-grounded knowledge of the principles of 



etable physiology, and of the habits of trees, is absolutely essential, to 



;e with success this very important branch of arboriculture. We may, 



r er, quote the following statement from practice as one example, taken 



irom an average of acres on an extensive plantation in Sussex : 



icre of siliceous sandy soil, worth 7s. per acre, when under pas- 

 ige, being properly prepared and planted with larch, at three feet and 

 apart, required thinning for the first time, when the trees had 

 attained to ten years of growth. 



Number of trees when planted 3555 on one acre, of which 100 had 

 during the first ten years of growth ; therefore when the thinning 

 commenced the number was 3455, 



e^' n r er0 f f h , f Numt of Trees Distance of 



ears Growth left on each occasion the Trees 

 rhen thinned. of thinning. Ft In 



10 3097 3 9 



15 2722 4 



Number of 



. Trees Value, 



thinned out. s. d. I s d 



100 worth 4 each. } 

 200 03 > 4 13 



58 2 J 



100 vacancies from accidents. 



27 



35 



43 



51 



2411 



2073 



1440 



1031 



680 



4 3 



4 7 



5 6 



6 6 



80 



//y 







The future returns of income from the plantation, now rest on six hun- 

 d and eighty trees nearly arrived at their perfection of growtli The 

 distance of nine feet apart is considered a sufficient space for the larch 



