Cultivation Techniques of High-Leaf Photinia

Lead: High-stem Photinia is a kind of Photinia, also known as dry or single-leaf Photinia. From the cuttings of small cups and seedlings, the branches were trimmed, and the trunks were left to develop straightly, leaving their crowns to achieve the goal of becoming independent rods and crowns. The tall poles of Photinia are known for their straight trunks and rich crowns.

Distribution in China: It is distributed in East China, South China, and Southwest China, including: Zhejiang, Jiangsu, Anhui, Fujian, Sichuan, Henan, Guangdong, Jiangxi, and Hunan. With the vigorous development of urban landscaping, most cities across the country can see its presence, and street trees are used more widely.

Planting Techniques

The tall poles of Photinia frasery generally use the cutting propagation method. The cutting propagation method has successfully developed a set of cutting propagation technology with low cost, easy operation and high survival rate, which can be produced in ordinary plastic greenhouses, and is suitable for popularization and application of most tree nurseries.

1, cutting facilities:

Monolithic greenhouse cuttings are used to cover the film of greenhouses and shade nets. A ground cutting seedbed was established after the ground was leveled in the shed. The width of seedbed is about 100cm, and a baffle with a height of 10-12cm is installed around.

2, seedbed preparation:

The soil in the planting area is loose in texture, fertile and slightly acidic to neutral, and the irrigation is convenient and the drainage is good. Before planting, 3,000 kg of decomposed manure and 50 kg of superphosphate are applied per acre, and soil is ploughed to a depth of 25 cm or more. At the same time, insecticides are used to control underground pests. After the ploughing, the soil is leveled, drains are opened, and seedbeds are made. The bed width is about 1 meter. The bottom of the seedbed is covered with a layer of fine sand for drainage. The cutting matrix can be made of vermiculite and peat, or a clean yellow heartland with fine sand. Seedbeds and substrates should be sterilized with fungicides and insecticides to prevent pests and diseases.

3, cutting time:

Spring in early March, summer in early June, early autumn in September.

4, cuttings cutting:

Use semi-woody twigs or lignified current year shoots, cut into one leaf and one bud, length 3 -4cm, cuts should be smooth.

5. Cutting treatment:

After the cutting is done, pay attention to moisturization, and try to follow the scissors. Prior to cutting, the incision was treated with a rooting agent to speed up rooting and improve survival. The cutting depth is 3cm, and the density is 400 per square meter. Immediately after plugging in, water was irrigated and the leaves were sprayed with carbendazim and anthrax mixed solution.

6, post-insertion management:

After cuttings, the seedbed should be inspected frequently. The moisture content of the matrix should be maintained at about 60%. The air humidity in the shed should preferably be kept above 95%. The temperature inside the shed should be controlled below 38°C. If the temperature is too high, the temperature should be reduced by spraying. Shade from cuttings until they germinate. After 15 days, part of the cuttings began to grow roots, and the water content of the substrate should be appropriately reduced, generally about 40 c70. When more than 50% of cuttings begin to take root, membrane ventilation can be gradually opened, and the shading transmittance is about 50%. When the roots of the cuttings are all rooted and more than 50% of the leaves are turned, the shade nets and films of the greenhouse are gradually removed and the seedlings are started. Can be combined with spraying foliar fertilizer or applying low-concentration water-soluble fertilizers to promote the healthy growth of cutting seedlings.

From the beginning of the small seedling cuttings, the main stems are used for supporting bundles with straight bamboo tools such as bamboo sticks for about six months. The branches at the bottom of the seedlings are cut off by 80% to maintain the growth of 20%, to help the main body absorb nutrients. When you need to remove the next branch, you can cut off the other 20%. By analogy, the auxiliary support can be removed until it grows to 80-100 cm or the main diameter reaches 3 cm, allowing it to grow naturally. This can be done by trimming the crown to the desired shape.

Puyang County Wenxiang Nursery Farming Garden (Sweet Garden) is located at the junction of Zhaxia Town, Shuyang County, Jiangsu Province and Beijing-Shanghai Expressway (Puyang North Exit) and 205 National Road. The company was legally registered in 2010 at the Industrial and Commercial Bureau of Suiyang County, Suqian City. . The nursery has the main cultivation: tree rose, old pile rose bonsai, rose rose, rose varieties, edible rose, European moon, nansu seedlings, lobular boxwood ball, melon seeds boxwood seedlings, tall leaves, such as heather. . .

Jiangsu Wenxiang Garden has built Jiangsu's largest grass flower seed wholesale center: the first-hand sources of direct seeds from lawn seeds, pasture seeds, professional slope protection seeds and flower seeds.

Source of information: Youyang County Wenxiang Nursery Farming Garden