2. Soil preparation and fertilization: After selecting seeds, soil preparation and base fertilizer treatment should be carried out. In order to plant oranges well and improve the survival rate of oranges, it is necessary to dig pits with a depth of 60 cm * a width of 60 cm on the ploughed land, then pour 50 kg of farm manure and 30 kg of ternary compound fertilizer into each pit, and then cover the fertilizer with a thin layer of soil, and then plant it after wetting the thin soil.
3. Reasonable close planting: plan reasonable close planting when digging a pit. Oranges are photophobic fruits, and they need sufficient light during their growth. At the same time, in order to increase the output of oranges, reasonable close planting is also very important. The best planting density is 2 meters between plants and 3 meters between rows, which can not only ensure the light but also enhance the transparency of the field, which is convenient for later fertilizer and water management and garden management.
4. Fertilizer and water management: There is a certain gap between fertilization and watering in different growth stages of citrus. At the seedling stage, orange trees should be fertilized at least 6 times a year. In order to promote the growth of citrus trees and shorten the growth cycle, organic decomposed fertilizer and foliar fertilizer should be used simultaneously. Until the fruiting period, orange trees only need to be fertilized four times a year, mainly using organic decomposed fertilizer or farmyard manure with foliar fertilizer. Fertilization method is generally ring furrow application or hole application. Only in this way can the nutrients be brought into full play. Citrus reticulata should be watered frequently at seedling stage, and the accumulated water should be discharged in time. After the fruit is hung, water it every half month. In the middle and late stages of fruit growth, try to water as little as possible or not, because sugar needs to be precipitated. If there is too much water, the taste of oranges will become weak or not sweet.
5. Garden management: Garden management mainly includes weeding, pruning and leaf cutting, thinning flowers and fruits, bagging, pest control and garden cleaning. Weeding by intertillage at seedling stage can enhance soil permeability and improve the immunity of fruit trees. Pruning and leaf cutting are also carried out in stages. The seedling stage is mainly to cut off the messy branches and leaves, and the initial fruit stage is mainly to promote the growth of lateral branches, so it is necessary to carry out appropriate shaping.