How trees are planted in hexagonal system for orange cultivation?

planted

 In this method, the trees are planted in each comer of an equilateral triangle. This way six trees form a hexagon with the seventh tree in the centre. Therefore, this system is also called as ‘septule’ as a seventh tree is accommodated in the centre of hexagon. This system is difficult to layout and for doing cultural operations. This system accommodates 15% more trees than the square system.