When people grow and graft fruit trees, they are used to adopt methods such as spring branching or summer and autumn bud grafting. In fact, grafting when the sap of fruit trees is suspended during the dormancy period of the fruit tree can not only alleviate problems such as manpower and time stress, but also increase the rate of seedling establishment. Interested farmers may wish to try.
Material preparation and storage
First, the rootstocks that meet the grafting standards and the rootstocks that did not survive are excavated from the nursery before being frozen. The rootstock is cut at 15 to 20 cm from the root, and the selected scion and sub-variety are tied into bundles. Dig 50 cm deep and 50 cm wide on the Chaoyang slope. The length depends on the number of rootstocks and scion. Put the rootstock and scion vertically side by side into the ditch. In order to prevent mildew during storage, a bunch of grass can be placed every 50cm. To facilitate ventilation. When the nursery stocks are full, fill in the wet sand. The humidity is not suitable for hand-hold water, and it is suitable for spreading. The thickness of the buried sand is about 40 cm, and the top cover is 10 cm thick loam. In winter, remove water and snow from the surrounding area to prevent the increase of moisture in the ditch and cause mildew.
Grafting time and method
Grafting can be done indoors. If there is a plastic greenhouse or greenhouse, the site should not be too dry. If conditions permit, they will be transplanted locally in plastic greenhouses or greenhouses after grafting, and they can emerge in advance. Grafting can use common techniques, such as cutting, splicing, tongue-jointing and budding with xylem. After grafting, the top of the scion should be sealed with wax to keep the moisture. When taking the rootstock scion, be sure to take it now and put it into the storage ditch immediately afterwards.
Management before and after grafting
The grafted seedlings in the storage ditch should be prevented from accumulating water and kept ventilated. It is forbidden to be too dry, and the cover soil on the ditch is gradually withdrawn after thawing, and the transplanting nursery is timely completed. The nursery should apply enough base fertilizer and get good ridges. The grafted seedlings should be planted in rows of 40-50 centimeters and 20-30 centimeters in diameter, and the soil should be 1 to 2 centimeters high so that the scion will not be exposed and the soil will be pressed. And fill enough water. When the grafted seedlings are 5-10 centimeters in length, the bundled objects are released, so as not to affect the growth of the seedlings, and timely supplement water according to the soil moisture situation, timely topdressing, grass clippings and pest control. Seedlings that do not survive should be patched in time to increase the emergence rate.
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