The traditional harvesting method of Eucommia is to pour skin from large trees aged over 10 years. The girdling regeneration technology overcomes the drawbacks of tree-skinning and can make one tree more revenue, improve economic efficiency, and the girdling regeneration technology must achieve three levels. First, peeling time. It is best to be carried out from May to June, because there is more rain during this time, the relative humidity of the air is relatively large, the temperature is generally stable, and the leaves of the eucommia tree are all unfolded, which is the best time for skinning. Second, the girdling method. First of all, a horizontal cut below the branch of the tree trunk is followed by a T-shaped vertical cut. The length of the longitudinal cut is grasped according to the situation. Generally, the length of cut is about 20 centimeters from the ground, and the cut is repeated one week. The depth of cut should be mastered: cut the phloem, do not damage the xylem. Then, with the tip of the knife, pick up the bark at the edge of the slit and pry it with your hand and cut it, cutting it up and down until it is cut. During the peeling process, do not touch the peeled trunk with hands, knives, etc., and avoid other mechanical damage. Third, it is a protective measure. After girdling, when air humidity is above 80%, regeneration of the new skin is beneficial. Immediately after the skin is peeled off, the peeling area is wrapped with a transparent film. The size of the film is slightly wider than the actual length of the stripping area and the bust. Pay attention to where the film meets, so as not to be dried by the wind. The upper and lower parts of the film are tied with fine twine, the upper part is tied tightly, and the lower part is loose. China Agricultural Network Editor
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