Main points of propagation of dragon fruit

The main results are as follows: 1. The cuttings are most suitable in spring and summer. The cuttings should select full stem nodes, which are about 15 cm long. After the wound is air-dried, they are inserted into the sand bed. About 15 Mel can take root in 30 days, and the roots grow to 3 Mel and 4 cm transplantable seedbed. 2. The grafted seedling, which is disease-free, robust and full of stem and flesh, is selected as the rootstock, grafted on a sunny day, and the dragon fruit plant is transversely cut into 4cm stem segments with a knife, waiting for the wound to dry, then cut into a plane with a horizontal knife 10 cm above the stem of the rootstock, insert the scion, align it with the cambium, tie it firmly with cotton thread, and place it in indoor culture. Under the condition of 28Mel 30 ℃, a large number of calli were formed on the wound joint surface of 4Mel in 5 days, and the color of scion was similar to that of rootstock, which indicated that the vascular bundles of them had healed and grafted successfully, and then they could be moved into the pseudo-planting bed to continue to cultivate. (3) the seedling bed for seedling management should choose fields with ventilation and sunny, fertile soil and convenient drainage and irrigation, make a fine border, border ditch 90 cm, apply 1500ml 2000kg of rotten chicken manure or cow manure per mu, mix 1000 kg of grain hull, stir well, and apply to the topsoil layer of 10mur30cm below the border surface during soil preparation. After that, apply 150kg calcium magnesium phosphate fertilizer per mu, stir it fully with a hoe, apply it to the topsoil layer 5cm deep, then plant the seedlings in the seedbed according to the row spacing of 3cm, water thoroughly, and spray 500 times carbendazim once, whiten the topsoil when it is sunny, watering it once as appropriate (about 7MUVE for 10 days), apply 5MUE 7kg compound fertilizer every 10Mul 15 days, wait for a full stem segment of a stem, and then come out of the nursery. As this variety has just entered our country, the cultivation techniques need to be improved. Please explore the experience and explore better cultivation methods.