How to Plant and Maintain Photinia rubra (About the Conservation Skills of Photinia rubra)

Photinia rubra, also known as Flame Red, Millennium Red, Red Robin and so on. Its new leaves are red in spring, green in summer and red in autumn, winter and spring. The frost color is too strong, the low temperature color is better, and the ornamental value is extremely high. Let's take a look at the cultivation method of Photinia rubra!

I. Selection and arrangement of nursery land

The soil in the planting area should be loose, fertile, slightly acidic to neutral, with convenient irrigation and good drainage. Before planting, 3000 kg of decomposed manure and 50 kg of calcium superphosphate were applied per mu, and the digging depth was more than 25 cm. At the same time, pesticides are used to control underground pests. After ploughing, the soil will be leveled, and a drainage ditch will be opened to make a seedbed, the width of which is about 1 m.

Second, seedling transplantation

Generally, the transplanting time is March-April in spring and autumn10-165438+10, depending on the local climate conditions. The planting spacing should be determined according to the time of leaving the nursery and the cultivation goal. If the annual shrubs are planned to be sold, the plant spacing should be 35 × 35cm or 40 × 40cm, with about 3000 plants per mu.

When transplanting seedlings, carefully unpack or remove the nutrition bowl to ensure the integrity of the root soil ball and dig holes at a fixed point; Pile fine soil on the root, stretch the root and compact it gently. After planting, thoroughly water the roots in time.

Third, post-planting management.

Special attention should be paid to water management in the slow seedling stage after planting. In case of continuous sunny days, water should be watered every 3-4 days after transplanting and every 10 days thereafter. In case of continuous rainy days, drainage should be done in time. After about 15 days, the seedlings can be fertilized after a slow seedling stage. Urea is applied every half month in spring, and the dosage is about 5 kg/mu. Apply compound fertilizer once every half month in summer and autumn, and the dosage is 5 kg/mu; In winter, the decomposed organic fertilizer is applied once, and the dosage is 1500kg/ mu, so it is best to ditch and bury it. Fertilization should be based on the principle of thin fertilizer and diligent application, and it is not allowed to use too much at a time to avoid hurting roots and burning seedlings. Weed and loosen the soil in time to prevent soil hardening.

Fourth, pest control.

Photinia rubra has strong resistance to stress, and no destructive pests and diseases have been found. However, if the management is improper or the nursery environment is not good, gray mold, leaf spot, scale insects and soil silkworms may occur. Spraying 50% carbendazim 1000 times solution can prevent gray mold, and spraying 50% zineb 800 times solution can prevent gray mold in the onset period. Leaf spot can be controlled by 300-400 times of 50% carbendazim or 300-400 times of thiophanate methyl. Dimethoate emulsion can be sprayed 200 times or 800- 1000 times to control scale insects. The prevention and control of soil silkworms should be carried out before planting, and the soil should be deeply plowed appropriately, and phosphorus-containing pesticides such as soil silkworms should be spread. If you encounter the harm of soil silkworm after planting, you need to remedy it in time, otherwise it will be very harmful, especially for Photinia fraseri at seedling stage, which may cause a large area of death.