The method of opening armour of jujube tree

Jujube tree open nail from the bottom up, open a ring every year, each ring distance of 5 cm, straight to the bifurcation of the main branch, and then from the base upward. The first mouth is generally not coincident. When opening the nail, first use the wood plus tree hook to remove the old bark in the ring cutting part to expose the white phloem tissue, then cut twice with the nail opener, 0.5 cm wide and deep to the xylem, and then remove the phloem tissue between the ring cuts, not to damage the xylem, but also can leave a little phloem tissue.