How to raise the latest potted orange trees?
The orange tree is an evergreen shrub of the citrus genus of Rutaceae, with its origin in China, evergreen in four seasons, dense branches and leaves, neat tree posture, full of fragrant flowers in spring, numerous yellow fruits in autumn and winter, and extremely beautiful yellow and green colors. In addition to being used for fruit cultivation, its potted ornamental is also very popular. Let's take a look at how to raise potted orange trees.
Container selection
The containers of potted orange trees are mainly round, so that the roots can spread evenly around. At the same time, the containers need water seepage and good air permeability to ensure the oxygen demand for root growth and prevent the rotting roots caused by stagnant water in the container. Among all kinds of texture containers, sukiyaki pot is the most suitable for planting orange trees. When using other texture containers, in order to overcome the disadvantage of poor air permeability, you can lay 5 cm thick coarse sand at the bottom of the basin, pad a layer of new tiles along the inner wall, and then fill the soil to plant trees.
Prepare basin soil
The basin soil suitable for orange tree growth is generally neutral (PH value is 4.5-7.5), sandy loam or sandy soil rich in humus. When preparing, 4 parts of ripe pastoral soil, 2 parts of river sand, 1 part of plant ash, fully mixed evenly, crushed and screened. The culture soil should be disinfected before use, such as cooking disinfection, baking disinfection or medicine (1.5% formalin) disinfection.
Fertilizer and water management
1. Watering: the pH value of water is generally 6.5-7, which can be corrected by ferrous sulfate. The difference between water temperature and soil temperature should not exceed 5 ℃. Watering in the growing season is carried out before 10:00 or after 4 p.m. Water once a day on a sunny day in summer, if the soil is dry, make up water again on the same day, water once a day in spring and autumn, water every 2-5 days depending on soil moisture in early spring and late autumn, and control watering in winter.
2. Fertilization: potted orange trees should be fertilized frequently because of trees, days, and thin soil. Potted plants with strong fertilizer tolerance, large growth and more fruit should be fertilized more, otherwise less fertilizer should be applied, no fertilizer should be applied during the dormant period, more fertilizer should be applied to those with low fertilizer content or long-term potted soil, and less fertilizer should be applied to those with high fertilizer content.
Crown control plastic surgery
1. Tree shape selection: the tree shape of potted orange trees can be shaped with rich imagination, such as natural round head shape, tower shape, single-branch cliff shape, two-branch deer horn shape, three-branch cup shape, weeping willow shape, dragon curve shape, etc., according to the different requirements of fruit tree species and varieties, such as upright and sagging. It should not only be beneficial to the result, but also have aesthetic effect and improve its ornamental value.
2. Spray shaping: foliar spraying plant growth retarder (such as dwarf, paclobutrazol, etc.) should be sprayed for 2 or 3 times in the vigorous growth period of potted orange trees in summer, which can make the branches stout, internodes shorter and plants dwarf. In addition, the main measures to promote flower dwarfing and shape pruning are wiping buds, coring, taking branches, curved branches, ring cutting, retraction, renewal, pulling branches and so on, and enhance the light by opening branch angle and thinning long branches, dense branches and ineffective branches to form an ideal tree shape.
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