Seedless Wogan planting technology and management methods (cultivation and breeding management of Wogan)

Management of Seedless Mandarin Orange Saplings

The main purpose of growing young trees is to cultivate the trunk, ensure a good tree shape, and prepare for future fruiting.

The period of young tree sprouting is the key period for cultivating tree structure. Each young tree retains 3-5 main branches, and the branch length is controlled at about 20-25 cm, so that the young trees are distributed in an umbrella shape.

During the growth stage of young trees, irrigation should be carried out reasonably according to weather conditions to ensure sufficient water supply and promote rapid growth of the trees. During the growth stage of new shoots in spring every year, top dressing should be carried out to promote the growth of new shoots.

Management of seedless mandarin orange fruit trees

The management of fruit trees includes several aspects such as fertilization, watering, and pruning.

1. Fertilization

Different fertilization plans should be adopted according to different growth stages. Base fertilizer should be applied during the dormant season in winter and spring. 25-50 kg of decomposed organic fertilizer can be applied to each tree as base fertilizer.

Apply pre-flowering fertilizer before flowering to promote flowering, use 0.3-0.5 kg of potassium sulfate compound fertilizer for each plant; during the rapid expansion period of the fruit, apply fruit-enhancing fertilizer, which is mainly potassium fertilizer, use about 0.4-1 kg of potassium sulfate compound fertilizer for each plant.

2. Watering

The watering of Wogan can be determined according to weather changes. In case of drought, watering and irrigation should be carried out in time to ensure sufficient water supply. In case of rainy weather, drainage should be carried out in time.

In addition, water should be applied once during the budding, flowering and fruit expansion stages of the Wogan trees.

3. Pruning

The management work of fruit tree pruning is to cultivate fruiting mother branches. After the spring buds sprout, remove the early spring buds in time to promote the growth of strong branches.

Summer shoots are not conducive to fruiting and are prone to fruit drop. They should be removed in time when they are about 3-5 cm.

4. Pest and disease control

The diseases and pests that harm the Wogan mandarin orange include canker and anthracnose, and the main insect pests are leaf miners, citrus psyllids, etc.

① Ulcer disease is common in rainy seasons and can occur in spring and autumn. For ulcer disease, first of all, choose disease-free seedlings in the selection class to control leaf wounds, release the shoots uniformly, and use the clamp to prevent and treat 2-3 times after releasing the shoots.

If the disease occurs in spring, it can be controlled by spraying a mixed solution of 1500 times the compound fine sand organic copper solution and 72% agricultural streptomycin. If ulcers occur in Wogan fruit trees in autumn, they can be controlled by spraying copper hydroxide.

② Anthracnose is prone to occur mainly in hot and humid weather. To deal with anthrax, we should pay attention to improving drainage facilities in normal times and drain water in time during hot and rainy seasons.

Use drugs for prevention and treatment in time after the onset of the disease. The drugs for prevention and treatment of anthrax include mancozeb, methyl thiophanate, copper hydroxide, etc.

③Leafminers mainly harm the tender leaves and buds of Wogan. To deal with leafminers, you must take precautions in advance and spray pesticides in time when the buds are about 1 cm long. Available drugs include insecticide hydrogen peroxide, avermectin emulsifiable concentrate and cypermethrin.

④ Citrus psyllid is the main pest of Wogan, which will induce the occurrence of other diseases. Citrus psyllid mainly eats tender leaves and buds. To prevent and control citrus psyllid, unified shoot release and unified prevention and control are required. The control drugs include imidacloprid, chlorpyrifos, etc.