Breeding mode of jujube;
1, grafting. There are mainly wood bud grafting and branch grafting. The main points of grafting technology can be summarized as six words: "fresh", the scion remains fresh and there is no water loss. "Flat", the cutting surface of the scion should be flat. "Quasi", the cambium of scion and rootstock should be aligned. "Tight", tie it tightly after connection. "Fast" operation is faster. "Wet", after grafting, bury the soil or cover it with plastic bags to keep the humidity. At the same time, 5-7 days before grafting, the rootstock nursery is irrigated to make it easy to peel.
2. Take root and sprout. Select excellent varieties of self-rooted plants, before germination, dig a ditch with a width of less than 30-40 cm and a depth of about 50 cm around the crown, cut off the roots with a diameter of less than 2 cm, apply organic fertilizer in the cut-off ditch, and then backfill. Roots and tillers can be produced in the growing season. The roots and tillers are dug out in the next spring, treated with ABT rooting powder or other hormones, and planted in the nursery to cultivate strong seedlings.
Extended data:
Jujube trees grow in mountainous areas, hills or plains below 1700 meters above sea level, and belong to warm fruit trees. The annual average temperature in the producing area is about 65,438+05℃, and it needs 65,438+03-65,438+05℃ in the germination stage, 65,438+07℃ in the branching stage and 22-25℃ in the flowering and fruit setting stage. Jujube trees are drought-tolerant and waterlogged-tolerant, but high air humidity is needed at flowering stage, otherwise it is not conducive to pollination and fruit setting.
Jujube trees are light-loving, sensitive to light reaction, adaptable to soil, barren and salt-tolerant. But we are afraid of the wind, so we should pay attention to avoid the tuyere in the process of building the garden.