First, choose good breeds. There are many kinds and varieties of citrus that can be grown in China. We must choose the best variety based on the local ecological conditions and market demand. To deal with seedlings, including the removal of curved root seedlings, unqualified seedlings, short cut too long roots, injured roots. For seedlings that have been transported long distances, the roots of the seedlings should be soaked in clean water for about 2 hours before transplanting, and then they should be marked with mud.
Second, suitable ecological conditions. Suitable ecological conditions include suitable climatic conditions and suitable soil conditions. Citrus is a tropical, subtropical evergreen tree, and the heat conditions required for growth are relatively high. Even the most cold-resistant cultivar, Wenzhou Tangan, requires an annual average temperature higher than 15°C, and an extreme winter temperature higher than -7°C.
Third, adopt formula fertilization. Formula fertilization refers to the determination of various soil nutrient elements available for citrus fruit trees, combined with the needs of various growth and development stages of citrus trees, proportionately combining various required fertilizers, and based on the percentage of fertilizers that can be absorbed and utilized in soil. A scientific fertilization method to determine the amount of fertilizer applied. Adopting soil testing and formula fertilization technology can achieve the purposes of increasing fertilizer production, improving fertilizer efficiency, improving soil fertility, and ecological protection.
Fourth, transplant science caution. Transplanting should be as vertical and horizontal as possible, conducive to orchard management and ventilation. Seedlings should not be planted too deep or too shallow, which is appropriate when used in a nursery. Generally, the height of the grafted interface is 3 to 5 cm above the surface. When transplanting, the root system will be neat and the root system must not be in direct contact with the applied base fertilizer. When seedlings are transplanted, the soil should be compacted, the roots should be poured, and the dry areas must be covered with water.
Fifth, planting logistic fertilizer water. Seedlings can survive after about half a month after colonization. If the soil is dry, watering should be performed once every 1-2 days. After the survival, the fertilizer can be topdressed. Thin liquid fertilizer should be applied to promote root and shoot growth. Remember to solve the grafting tape in due course.
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