How to raise orange trees? Orange trees are warm and shade-tolerant.

Orange is a common fruit, almost everyone has eaten it, and orange trees are also very common in life. The orange tree is a small evergreen tree, evergreen in all seasons, with neat and dense branches and leaves, which looks very beautiful from a distance. In spring, fragrant flowers bloom all over the trees, and in autumn, yellow fruits hang all over the branches, which makes people drool. However, it is very important to cultivate orange trees. Let me introduce the cultivation methods and precautions of orange trees to you.

Cultivation method of orange tree (basic knowledge): the best growing soil: orange tree likes sunshine and is suitable for fertile, loose, slightly acidic and well-drained sandy soil.

Growth humidity requirements: I like a warm environment with a certain humidity. The soil in the basin should be kept moist, but there should be no water in the basin. When the weather is hot from summer to early autumn, in addition to watering the basin, we should also spray water on the ground around the basin to keep it moist.

Optimum growth temperature: citrus reticulata likes warmth, is more resistant to shade, and is more sensitive to temperature than light. The optimum growth temperature is centered at 26℃, and 23-34℃ is the most suitable.

Optimum growth light: Citrus is a kind of fruit with strong shade tolerance, but good light is still needed for high quality and high yield. Generally, areas with annual sunshine hours 1200 ~ 2200 hours can grow normally.

Matters needing attention in citrus tree cultivation: Fertilization: Citrus likes to fertilize, and generally applies more thin fertilizer. Apply decomposed liquid fertilizer once before the plants germinate, and then apply liquid fertilizer mainly containing nitrogen every 7 ~ 10 days to promote more branches and leaves and more spring shoots. Fertilize in time after each coring to promote the early maturity of branches. During the growth of oranges, you can sprinkle some cake fertilizer on the basin surface, so that some fertilizer will penetrate into the soil every time you water it, thus enhancing fertility. After autumn, fertilization will be reduced, plant nutrition will be avoided, autumn shoots will be promoted, and fruits will compete for nutrients, leading to fruit drop.

Key points of watering: different fruit trees have different requirements on the pH value of water, generally 6.5 ~ 7 is appropriate, and ferrous sulfate can be used for correction. The temperature difference between water temperature and soil should not exceed 5℃. Watering in the growing season should be carried out before 10 in the morning or after 4 pm. Water it every day on sunny days in summer 1 time. If the soil is dry, water 1 time on the same day. Water 1 time every day in spring and autumn, and water 1 time every 2 ~ 5 days in early spring and late autumn; Control watering in winter.

Pruning essentials: (1) Orange tree is a kind of fruit that needs pruning. If you don't prune the orange tree, it will rarely grow strong and the yield will not be high next year. Pruning of orange trees is usually done once in winter after fruit harvest. (2) After the oranges germinate, many new branches will grow, and the branches that are too thin, too thick or too dense can be appropriately cut off, and some diseased branches can also be cut off, which is particularly beneficial to the production of oranges. There will be more flowers and more fruits in the coming year.

Pot soil replacement: potted oranges have less pot soil and limited nutrient supply. After many years, the soil fertility is lacking, and citrus will weaken year by year, with few flowers and few fruits. In order to keep oranges blooming and bearing fruit every year, they must be replaced. The best time to change the pot soil is half a month before the orange germinates. Before replacing, prepare a pot that is one size larger than the original one, and take the oranges out of the pot without breaking the mud. Cut off the topsoil with a thickness of 1 and 2 cm along the mud lump, cut off the dead roots and rotten roots, cut off the soil with a thickness of 1cm at the bottom of the mud lump, and take out the tiles embedded in the original pot bottom pad. The drainage holes of the new pool are laid with tiles. First, lay a drainage layer with a thickness of 2 or 3 cm, and then lay a layer of nutrient-rich culture soil with a thickness of 4 or 5 cm, which is mixed with a small amount of calcium superphosphate. Then put the orange mud balls into the pot, fill the cultivated soil around the mouth of the pot, slightly compact the pot soil, pour enough water, put it in a ventilated and semi-shady place, and put it back in place for daily management after one week.

Key points of propagation: seed propagation, grafting propagation and cutting propagation.

(1) Seed propagation: first prepare excellent orange seeds, then turn over the ground, and then slowly cultivate them when the oranges grow.

(2) Grafting propagation: We can cultivate some orange seedlings first, then cut off the branches of some excellent orange varieties and then graft them, so that we can plant excellent orange varieties.

(3) Cutting planting: insert some branches suitable for cutting into the soil, and then add some rooting elements, so that orange trees can grow easily.

Pest control: generally, carbendazim and other sterilization and disease prevention drugs can be sprayed; For pests, corresponding pesticides should be sprayed for control. For example, red spiders and rust spiders can be killed by spraying 50 {BF} acaricidal emulsifiable concentrate. Spraying 2000-3000 times imidacloprid EC with 5 {BF} can control Chiba moth. 40.7 {BF} 1000 times of liquid can be sprayed to control scale insects. Spraying 50 {BF} pirimicarb 1500 times solution on aphids.

Experience in cultivating orange trees: orange trees are relatively easy to survive, but if you want to bear more and bigger fruits, you need later management and maintenance. Orange trees like moist environment, so keeping the garden moist after planting is one of the most important links in orange tree management. In order to make young trees bear fruit early and have a good harvest, shaping and pruning becomes particularly important. Knowing the management method of orange tree, friends, let's see if your orange tree is managed correctly. If not, then correct it quickly and wait for the kumquat to be harvested.