Bud grafting Technology of planting Peach trees

Peach bud grafting, grafting in the same year, hanging fruit in the next year, and entering the full fruit period in 3 ~ 4 years. The key points of grafting techniques are as follows:

The main results are as follows: 1. To select rootstocks, we should choose peach seedlings with strong growth, no diseases and insect pests and stem diameter of more than 0.5 cm.

2. In order to select the scion and scion, the new branches of the peach tree which is more than 3 years old should be selected, and the epidermis is smooth and delicate, the growth is robust, there are no diseases and insect pests, the flower buds are full and full, and the stem diameter is the same as that of the rootstock.

3. The grafting time is generally from late March to early April. However, due to different temperatures, in order to accurately judge the timing of grafting, it can be determined according to the growth of peach trees, when the peach tree sap flows in large quantities, the bud is waiting for 3-5 days before opening, and the bud grows about 1 cm is the best time for grafting.

4. Prepare plastic straps and knives by grafting. Select a full bud hole on the rootstock, first cut it in the ring at 1 cm above and below the bud eye for a week, deep into the xylem, and then cut a knife vertically on the opposite side of the bud, so that the cut skin and buds can be peeled off gently. When girdling, the action should be fast and light, so as not to damage the wood heart of the bud, and then cut a bud of the same size on the scion in the same way, so as not to damage the bud. At this time, gently align the buds peeled off from the scion on the rootstock in the original direction, so that the interface is absolutely consistent, and immediately wrap it firmly with plastic tape. At the same time, the buds on the rootstock must be erased.

5. Management after grafting ① after grafting, the sprouting on the rootstock should be wiped off in time, so as to promote the concentration of nutrition and the growth of buds, which is generally checked every 7 to 10 days. ② after the new bud branch is grafted to 20 cm, tie a stick or bamboo pole to the rootstock and tie the new shoot to the pillar with a live buckle to prevent it from being broken by the wind. ③ can remove the plastic bandage after the wound of the graft site has healed completely to prevent constriction. Due to its green growth, ④ grafted branches are vulnerable to pests, such as heart-eating insects, caterpillars, diamondback moths, etc., which can be used to kill 20 grams of butyl EC and spray 50 kilograms of water; at the same time, the stone-sulfur mixture made of 1 part of quicklime, 2 parts of sulfur and 10 parts of water is evenly smeared on the rootstock to prevent bacteria from invading. Due to the vigorous growth and large amount of fertilizer needed after ⑤ grafting, it is necessary to apply appropriate amount of chemical fertilizer in time, mainly nitrogen fertilizer; foliar spraying can also be carried out. 0.5% urea solution is sprayed 2 times in the early stage, and 1% phosphate fertilizer leaching solution is used in the later stage.