Growth habit of kumquat tree Kumquat belongs to Rutaceae and evergreen shrub. The height of the tree is less than 3 meters, the leaves are thick, ovate-lanceolate or oblong, the top is slightly sharp or blunt, and the base is wide wedge-shaped or nearly round; The fruit is oval or ovoid, orange-yellow to orange-red, and the peel is sweet; Seeds are ovoid, cotyledons and embryos are green, single embryo or occasionally multiple embryos. Kumquat is usually propagated by grafting. There are varieties such as Luofu, Round Kumquat, Long Leaf Kumquat, Mountain Kumquat, Golden Bomb and Longevity Kumquat.
Kumquat tree cultivation method Kumquat likes warm and humid, afraid of waterlogging and light, but afraid of strong light, slightly cold-resistant and drought-tolerant, and is planted all over the north and south. It needs neutral culture soil rich in humus, loose and fertile, and well drained. If the soil is acidic, it will not grow well.
In summer, it needs to be kept under a shade shed, especially at noon, so that it can be exposed to sunlight before 9: 00 am and after 5: 00 pm. In early autumn, it should be kept in a sunny place indoors in late autumn and winter, and fully exposed to sunlight.
When the temperature is lower than 10℃ in late autumn, it should be moved indoors in time, and the room temperature should be kept at 6- 12℃ in winter. If the temperature is too low, it is easy to suffer from freezing injury, while if it is too high, it will affect the dormancy of plants, which is not conducive to flowering and fruiting in the coming year. After Tomb-Sweeping Day in spring, you can properly open the window for ventilation to gradually adapt to the outdoor temperature, and you can leave the room after Grain Rain Festival. Watering method: within one month after planting kumquat seedlings, spray water every 3-4 days according to weather conditions. And pay attention to drainage to prevent root rot. After the new shoots of young trees that survive by fertilization germinate, they can be applied as decomposed human manure or tung bran fresh water fertilizer first, and then every 10 days or so. At the beginning, 8- 10 plants were applied every 50 kg. With the growth of seedlings, the amount and concentration of fertilization will gradually increase. Pruning method For kumquat seedlings that have not been reshaped or improperly reshaped before leaving the nursery, after 1-2 years of planting, according to the specific situation, they are pruned and fixed at the height of 30-35 cm before the spring shoots sprout.
Choose 4-5 branches with proper direction, uniform distribution and vigorous growth as the main branches, and smooth the rest. In late May, when the branches grow to 10- 15 cm, the second pruning is carried out; From late July to early August, the third top cutting was carried out.
Matters needing attention in kumquat cultivation: after kumquat enters the full fruit stage, the yield is high and the demand for fertilizer is large. At this time, insufficient fertilization will greatly affect the yield and tree potential. The fruiting habit of kumquat is different from other citrus, which blooms 3-4 times a year, and the fruits and flowers are the same tree. Therefore, the fertilization of kumquat fruit trees should be reasonable according to its characteristics.