The chestnut staying post is one of the commonly used grafting techniques in chestnut planting. It is obtained because of its good wound healing, no bag, no injury flow, easy operation during grafting, easy to tie new shoots, etc. Widely used, commonly used live pillars inserted into the skin (also known as live rod grafting) and dead pillars inserted into the skin (also called bare column grafting, dead rod grafting), then Xiaobian will specifically talk about inserting the belly Connect with technical related points.
First, the living pillar is inserted into the skin
The living pillar is inserted into the skin, which means that the rootstock layer above the rootstock grafting interface is not treated anyly, and has the advantages of easy operation and fast grafting speed. However, the chestnut uses this grafting method, and the management after grafting is very inconvenient. Planters are often required to remove the sputum, because not removing the sputum will cause the nutrients to be consumed by the living pillars (Figure 1).
Figure 1 live pillar inserts
Second, the dead pillar is inserted into the skin
The dead pillar is inserted into the skin. The rootstock of the rootstock above the rootstock grafting interface is completely removed at the time of grafting. This method is used to graft the chestnut. The management after grafting is very convenient, but the peeling layer is very slow during grafting, affecting grafting. Speed ​​(Figure 2).
Third, the living pillar is inserted into the skin and the dead pillar is inserted into the skin.
Figure 2: The bare column is inserted into the skin.
Figure 3: Semi-naked column insertion and wound healing
1. The advantages and disadvantages of the combination of the living joints and the dead joints are known. It is known that the semi-nude column inserting test has a better effect. Only a part of the rootstock is peeled off on the graft interface. Grafting at the time of grafting makes it very easy to strip the rootstock and accelerate the grafting speed. A small part of the head is left to pull the nutrients and water upwards. When the scion sprouts, the roots of the rootstock are germinated. And the new shoots are all removed, avoiding the competition for scion with the scion and promoting the robust growth of the scion after grafting (Figure 3).
2, the scion is best inserted in the sun, on the back or on both sides, grafting wounds should be left in the shade, can avoid the occurrence of branches and burns; 3-5 full buds when scion, the best trees every 50 cm The distance between grafting and 1 scion is generally the result of grafting in the same year, which is conducive to stabilizing the tree.
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