First, cut the seedlings.
Transplanting should be carried out in spring and summer. A fully grown stem node should be selected. Scrap chips can also be used as chips. When cutting, the branches should be cut into 30cm. After drying in the shade, the debris should be inserted into the sand bed or placed directly under the support frame and cement column. Any time except frosting. No need to water after harvest, keep the soil dry, and start watering after 10.
Second, grafting seedlings.
Choose harmless and vigorous growth? Measuring ruler? As a rootstock for sunlight grafting. Cut the stem seedlings of pitaya into 3-4 cm parts with a knife, and transplant them after the wound is dry. Cut the scion into rootstock with a horizontal knife, which is 10 cm higher than the rootstock stem, then align the scion with the cambium, fix it with cotton thread, and plant it indoors. 28-30? C, the wound surface will form a large number of callus within 4-5 days. When the color of the scion is close to the color of the rootstock, it shows that the grafting is successful and can be transplanted and cultivated in the later stage.
? Third, seedling management.
Pitaya likes to grow in a ventilated and sunny place, with fertile soil and convenient drainage, which can promote the rapid growth of Pitaya. Before sowing, decomposed chicken manure or cow dung should be coated on rice husk and mixed with it. When preparing soil, put it on the ground below 10-30cm. Apply calcium magnesium phosphate fertilizer, mix it with soil, apply it to the surface layer with a depth of 4-5cm, then sow on the seedbed with a row spacing of 3cm, and spray carbendazim for more than 500 times. When the sun is shining, the surface will turn white. Water once every 65,438+04 sunny days (about 7-65,438+00 days), with 6 kilograms of mixed fertilizer per mu. When the stems are covered with meat, you can walk out of the garden.
? The above is the rapid propagation method of pitaya. According to this method, the yield will be greatly increased.