The meaning of calender jujube

Calender jujube is to cut or cut off the sieve tube of phloem at flowering stage to temporarily prevent the organic nutrients produced by leaves from transporting to the root system, so as to improve the nutrition level of branches, leaves, flowers and fruits and achieve the purpose of fruit setting. The method of calender jujube is to cut the trunk with a long and narrow axe at flowering stage, requiring the same depth as xylem, resulting in young trees being cut once a year, trees in full fruit period 3 to 6 times a year, each time cut three times, axe marks in the shape of plum blossoms, with an interval of 2 to 3 centimeters per circle.