75 



one tree in the centre of the circle. It may be worked out 

 with equilateral triangles. The advantage of this system is 

 that all the trees are the same distance apart, and therefore 

 the trees would receive equal amounts of sunlight, and food 

 supply. This system is not well adapted to fillers. It 

 will permit the setting of about 15 per cent more trees per 

 acre than the rectangular system permits. 



The table given below shows the number of trees which 

 may be set on an acre of land at given distances by the three 

 plans just discussed. (See Lewis, C. I., Orchard Management. 

 Oregon Agrl. College Exp. Sta. Built. 111? p. 18. 1911.) 



Number of Trees Per Acre. 



o 



Distance Apart Rectangular Quin^ux Hexagonal 



garding the plans on which their old orchards were planted, 

 and the distance between the trees. The answers to this 

 question are summarized in the following table. 



