Discussion of the V-shaped Density Orchards According to  Solar Radiation Angle(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Discussion of the V-shaped Density Orchards According to  Solar Radiation Angle

Author(s):: LI Guixiang; ZHANG Anning; LIU Wei; ZHANG Yi; DONG Xiaomin; (Shandong Institute of Pomology，Tai′an，Shandong 271000)

Abstract:: The Y shape pruning peach trees were used as research materials，according to the local solar radiation angle，row spacing with different tree height，trunk height and angle of two branch and two main branches occlusion was calculated，the suitable branch angle and row spacing was studied.The results showed that the same height，spacing decreases with the increase of the stem，and increases with the increasing of the two main branch angle；row spacing increases with tree height increase.The two main branch minimum angle should be 72.04° according to the calculate result，for the convenience of production，the main branch angle should be 75°.Suitable row spacing was 4.45 m(height 3.5 m，trunk high 0.6 m) or 5.22 m (tree height 4.0 m，trunk high 0.6 m).

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Last Update: 2017-06-12