Planting methods and cultivation techniques of Photinia chinensis

Photinia rugosa is a hybrid of the genus Photinia in Rosaceae. It is a small evergreen tree named for its bright red shoots and tender leaves. There are two common varieties: red Robin and red lips, in which the leaves of red Robin are bright and more ornamental. The leaf color of Photinia chinensis can change with the degree of new and old leaves. in spring and autumn, the new shoots and young leaves are red, bright and long-lasting, with great vitality; when the summer is hot, the new leaves sprout less and the old leaves turn dark green, bringing a fresh and cool feeling to the hot summer. The leaves that experienced frost and snow in winter are brownish red, which brings warmth to the depressed land. Photinia has strong ecological adaptability, low temperature tolerance, barren soil resistance, and shade tolerance. Under direct light, the color is more bright. At present, this new color-leaf tree species is widely valued, with broad market prospects and great potential for development. The techniques of propagation and cultivation are introduced as follows:

Nursery site selection and soil treatment

The nursery should choose leeward to the sun, convenient transportation, flat terrain, deep soil layer, loose, fertile, slightly acidic to medium soil, convenient irrigation and good drainage.

Before planting, barnyard manure 3000kg, superphosphate 50kg, soil ploughing depth is above 25cm, and fungicides and fungicides are applied to control diseases and insect pests. To make a bed, turn it deeply into thin, pick up grass roots and stones, bed width 90-120cm, height 20-30cm, path width 30cm, seedling bed length depends on the situation, generally 10-20m. After the seedbed is finished, in order to prevent weeds, spray 500 times of Gol solution before cutting.

Cuttage treatment and cutting

Adopt semi-lignified twigs or completely lignified annual branches, cut into one leaf and one bud, about 3-4cm in length, cut ecological and landscaping planning and design, etc. Keep your mouth smooth. After cutting the cuttings, quickly put them in a cool, ventilated place, spray water in time, wet the leaves, and keep the cuttings fresh, but try to cut as much as possible. Before cutting, the incision was treated with rooting agent to speed up rooting and improve the survival rate.

The cutting time can be cut in spring in early March, in summer in early June and in autumn in early September. The row spacing 4-6cm of the treated case is inserted into the soil, and the depth is more than 1 ∕ 2 of the length of the cutting. when cutting, the cuttings should be cut neatly and evenly, and the leaves should be parallel to make every effort to be neat and consistent for management, observation and inspection. The cuttings should be watered immediately after cutting so that the cuttings can be closely combined with the soil. In order to prevent the occurrence of Rhizoctonia solani and root rot, 600 times liquid of Luheng No. 2 can be used to water the seedling bed.

The construction of plastic film shed and shadow shed

After the cuttings are watered, the bamboo slices sharpened at both ends are cut down in a bow (the height from the bed to the top of the bamboo bow is about 50cm), covered with agricultural plastic film, pressed and sealed with soil, leaving no gaps. After sealing the shed with plastic film, remember that direct sunlight should be built immediately on the plastic shed, requiring the height of the shed to be 1.5lu 2m, and the shading net with a transmittance of 60-70% should be selected to shade. The plastic film shed should also be shaded to prevent direct sunlight from the side.

Post-cutting management

The nursery bed should be checked frequently after cutting. the water content of the substrate should be kept at about 60%, and the air humidity in the shed should be kept above 95%. The temperature in the shed should be controlled below 30 ℃. If the temperature is too high, it should be cooled by spray. From cuttage to root sprouting, shade rate should be kept above 75%. After 15 days, some panicles began to root, and the water content of the substrate should be reduced appropriately, which should be kept at about 40%. When more than 50% of the ear strips begin to root, the film can be gradually opened for ventilation, and the shading rate can be reduced to about 50%. When all the panicle strips have roots and more than 90% of the leaves, gradually remove the shade net and film of the greenhouse, give more sufficient light, and begin to refine the seedlings. At the same time, it can be combined with spraying foliar fertilizer or pouring low concentration water-soluble chemical fertilizer to promote the robust growth of cutting seedlings.

Field transplantation

Adequate basal fertilizer should be applied before transplanting seedlings. The time of seedling transplanting is usually from March to April in spring or from October to November in autumn, which should be determined according to the local climatic conditions. The planting spacing should be determined according to the cultivation goal, such as the plan to cultivate one-year-old shrubs, the suitable row spacing is 35cm*35cm or 40cm*40cm, about 3000 trees per mu. The purpose of seedling initiation is to strive for more soil in the root system as far as possible, and it is strictly forbidden to pull up the seedling by hand to prevent damage to the young root and epidermis. When the seedlings are transplanted, if the root system expands, it should be pressed gently. Watering the root water in time after planting.

Management after planting

In the slow seedling period after planting, special attention should be paid to water management: in case of continuous sunny days, water should be watered once a day within a week after transplanting, and then every other week; in case of continuous rainy days, it should be drained in time. After half a month, the seedlings can be fertilized after the slow seedling stage, and the fertilization should be strictly based on thin application: urea every half a month in spring, compound fertilizer about 5kg per mu in summer and autumn, and mature organic fertilizer in winter with a dosage of about 1500kg per mu. Weeding and loosening the soil in time is usually necessary to prevent the soil from hardening. Weeding should master the strict principles of "getting rid of the early, getting rid of the small, except" and not harming the roots.

Control of diseases and insect pests

Photinia rubra has strong resistance to diseases and insect pests, and no destructive diseases and insect pests have been found at present. Botrytis cinerea, leaf spot or shell insect damage may occur. Botrytis cinerea can be prevented by spraying 50% carbendazim 1000 times, during the onset period, 50% Dysen zinc can be sprayed, leaf spot can be controlled by 50% topiramine 300 times, and shell insects can be sprayed with dimethoate emulsion.

Cultivation methods of Photinia chinensis | Control methods of Diseases and insect pests of Photinia rubra

Cultivation methods of Photinia chinensis | Pest control methods of Photinia chinensis-when purchasing seedlings, we should choose suppliers who have a good reputation and can provide high-quality after-sales service, so as to ensure the purity of varieties and reduce production risks.

Selection and arrangement of nursery land of Photinia chinensis

The soil of the planting land is loose, fertile, slightly acidic to neutral, and the irrigation is convenient and the drainage is good. Before planting value, 3000 kg of rotten barnyard manure and 50 kg of superphosphate were applied per mu, the depth of soil ploughing was more than 25 cm, and insecticides were applied to control underground pests. After ploughing, the soil is leveled, the drainage ditch is opened, and the bed width is about 1 meter.

Seedling transplanting of Photinia rugosa

The time of transplanting is generally from March to April in spring and from October to November in autumn, which should be determined according to the local climatic conditions. The planting spacing should be determined according to the time of staying in the nursery and the cultivation goal. If it is planned to sell according to the cultivation of annual shrubs, the suitable row spacing is 35 × 35 cm or 40 × 40 cm, about 3000 plants per mu.

When transplanting seedlings, it is necessary to carefully remove the packaging or nutrition bowl to ensure the integrity of the root soil ball, fixed-point hole digging; pile fine soil on the root, and make the root system stretch and gently compact. After planting, pour root water thoroughly in time.

Post-planting management of Photinia rugosa

In the slow seedling period after planting, special attention should be paid to water management. in case of continuous sunny days, water should be watered once in 3-4 days after transplanting, and then every 10 days or so; in case of continuous rainy days, it should be drained in time. After about 15 days, the seedlings can be fertilized after the slow seedling stage. Urea is applied every half a month in spring, with a dosage of about 5 kg / mu. Compound fertilizer is applied every half a month in summer and autumn, the amount of compound fertilizer is 5 kg / mu, and the amount of mature organic fertilizer is 1500 kg / mu in winter. Fertilization should be based on the principle of frequent application of thin fertilizer, do not use too much at one time, so as not to hurt the roots and burn seedlings. At ordinary times, it is necessary to weed and loosen the soil in time to prevent soil consolidation.

Pest control

Photinia rubra had strong resistance and no destructive diseases and insect pests were found. However, if the management is improper or the nursery environment is bad, Botrytis cinerea and leaf spot disease may occur or be harmed by shell insects, soil silkworms and so on. Botrytis cinerea can be prevented by spraying 50% carbendazim 1000 times solution, and during the onset period, 50% Dysen zinc solution can be used to prevent and control the disease. Leaf spot disease can be controlled with 50% carbendazim 300 Mel 400 times or topirazine 300 Mel 400 times. Scale insects can be sprayed with 200 times of dimethoate emulsion or 800ml 1000 times of liquid spray. Soil silkworm control should be carried out before planting, the land should be properly ploughed, and sprinkled with phosphorus insecticides such as soil insects must be killed. If you encounter the harm of soil silkworm after planting, it needs to be remedied in time, otherwise it will do great harm to spread, especially for Photinia rubra at seedling stage, which may cause large area death. Cultivation methods of Photinia rugosa

Cultivation methods of Photinia chinensis | Pest control methods of Photinia chinensis-when purchasing seedlings, we should choose suppliers who have a good reputation and can provide high-quality after-sales service, so as to ensure the purity of varieties and reduce production risks. Selection and arrangement of Photinia nursery soil with loose, fertile, slightly acidic to neutral soil, convenient irrigation and good drainage. Before planting value, 3000 kg of rotten barnyard manure and 50 kg of superphosphate were applied per mu, the depth of soil ploughing was more than 25 cm, and insecticides were applied to control underground pests. After ploughing, the soil is leveled, the drainage ditch is opened, and the bed width is about 1 meter. The transplanting time of Photinia chinensis seedlings is generally from March to April in spring and from October to November in autumn, which should be determined according to the local climatic conditions. The planting spacing should be determined according to the time of staying in the nursery and the cultivation goal. If it is planned to sell according to the cultivation of annual shrubs, the suitable row spacing is 35 × 35 cm or 40 × 40 cm, about 3000 plants per mu. When transplanting seedlings, it is necessary to carefully remove the packaging or nutrition bowl to ensure the integrity of the root soil ball, fixed-point hole digging; pile fine soil on the root, and make the root system stretch and gently compact. After planting, pour root water thoroughly in time. Post-planting management of Photinia chinensis during the slow seedling period after planting, special attention should be paid to water management. In case of continuous sunny days, water should be watered once in 3-4 days after transplanting, and then every 10 days or so; in case of continuous rainy days, it should be drained in time. After about 15 days, the seedlings can be fertilized after the slow seedling stage. Urea is applied every half a month in spring, with a dosage of about 5 kg / mu. Compound fertilizer is applied every half a month in summer and autumn, the amount of compound fertilizer is 5 kg / mu, and the amount of mature organic fertilizer is 1500 kg / mu in winter. Fertilization should be based on the principle of frequent application of thin fertilizer, do not use too much at one time, so as not to hurt the roots and burn seedlings. At ordinary times, it is necessary to weed and loosen the soil in time to prevent soil consolidation. Photinia chinensis has strong resistance to pest control, and no destructive diseases and insect pests have been found. However, if the management is improper or the nursery environment is bad, Botrytis cinerea and leaf spot disease may occur or be harmed by shell insects, soil silkworms and so on. Botrytis cinerea can be prevented by spraying 50% carbendazim 1000 times solution, and during the onset period, 50% Dysen zinc solution can be used to prevent and control the disease. Leaf spot disease can be controlled with 50% carbendazim 300 Mel 400 times or topirazine 300 Mel 400 times. Scale insects can be sprayed with 200 times of dimethoate emulsion or 800ml 1000 times of liquid spray. Soil silkworm control should be carried out before planting, the land should be properly ploughed, and sprinkled with phosphorus insecticides such as soil insects must be killed. If you encounter the harm of soil silkworm after planting, it needs to be remedied in time, otherwise it will do great harm to spread, especially for Photinia rubra at seedling stage, which may cause large area death.