How to plant osmanthus fragrans

Plant Name: Osmanthus fragrans

Family name: Oleaceae

Genus name: Oleaceae

Adaptation area: Yangtze River basin and its south area.

Deciduous, evergreen and broad-leaved mixed forest areas in north subtropical zone (major cities: Nanjing, Yangzhou, Zhenjiang, Nantong, Changzhou, Wuxi, Suzhou, Hefei, Wuhu, Anqing, Huainan, Xiangfan and Shiyan)

Central subtropical evergreen deciduous broad-leaved forest area (major cities: Wuhan, Shashi, Huangshi, Yichang, Xianning, Nanchang, Jingdezhen, Jiujiang, Ji 'an, Jinggangshan, Ganzhou, Shanghai, Changsha, Zhuzhou, Yueyang, Huaihua, Jishou, Changde, Xiangtan, Hengyang, Shaoyang, Guilin, Wenzhou, Jinhua, Ningbo, Chongqing, Chengdu, etc.

South subtropical evergreen broad-leaved forest area (main cities: Fuzhou, Xiamen, Quanzhou, Zhangzhou, Guangzhou, Foshan, Shunde, Dongguan, Huizhou, Shantou, Taipei, Liuzhou, Guiping and Gejiu)

Ecological classification: woody plants >; evergreen shrubs

Ornamental classification: flower viewing

Height range:12m

Morphological characteristics: the flowers are orange red or orange yellow, with light fragrance.

Growth habit: weak positive, like warm and humid climate.

Breeding: unknown [added]

Landscape use: garden planting and viewing.

The Tea Research Institute of the Provincial Academy of Agricultural Sciences has selected a new clonal variety from the natural hybrid offspring of Cinnamomum cassia. Large shrub, mesophyll, early bud species. The plants are tall, the trees are half open and the branches are dense. The leaf shape is oval, the tip of the leaf is tapered, and the leaf body is rolled in. The germination period of spring buds is generally in early March, and the period of one bud and three leaves is in early April. The growth potential is vigorous, the budding ability is strong, the bud leaves are still fat, the tender shoots are slightly yellow-green, and the hair is less. Flowering and fruiting are moderate. Strong cold resistance and drought resistance. Cutting has high survival rate, wide adaptability and high yield. The prepare oolong tea has special floral fragrance, mellow and fragrant taste and high yield. The fried green tea also smells of flowers and tastes fresh. Suitable for promotion in oolong tea area and green tea area.

Osmanthus fragrans is one of the excellent Osmanthus fragrans varieties in China, commonly known locally as Osmanthus fragrans, belonging to Osmanthus fragrans of Meliaceae, and the main cultivated variety is Osmanthus fragrans. Its testable history can be traced back to more than 2,500 years ago, with a long history.

General requirements for planting technology of osmanthus fragrans: adjust measures to local conditions, plant it in a reasonable sparse way, and the initial planting density of osmanthus fragrans is 1 10 plant/mu; The forest land is ready to be used as a whole, and the hole diameter is 60 × 60 × 50 cm. Seedling: 3-5-year-old cuttings, with ground diameter above 1.5cm and height above 1.5m; Tending management, expanding holes and shoveling once a year, water and fertilizer management, mainly applying farmyard manure, and applying compound fertilizer appropriately according to the growth habits of osmanthus fragrans at seedling stage. Transformation cultivation means replanting the existing osmanthus, thoroughly ploughing and topdressing, and strengthening the management of pest control. Danguilin will build tractor roads and reservoirs.

1. Site requirements: it can be planted in front of the house and behind the low hills. In mountainous areas, the slope is below 30 degrees and the altitude is below 500 meters. The site requires Class I and Class II forest land with good water and fertilizer conditions, a deep soil layer of over 80㎝ and good water and moisture conditions.

2, seedling requirements

Generally, seedlings are required to have dense branches, uniform distribution, full crown, developed roots and more fibrous roots.

Seedling size: The height of the annual, biennial and triennial seedlings of Dangui is greater than 25cm, 60cm and 120cm respectively. If the taproot is too long, it can be cut off appropriately, and seedlings over three years old should be brought with soil balls.

3. Cultivation techniques

(1) Planting time: late winter and early spring, usually from late February to mid-February of 12.

⑵ Planting density: generally, per mu 1 10 plants, and the plant spacing is 2×3m.

(3) Planting method

A. The sloping land or flat land with a slope less than 10 degree and the whole forest land are planted by digging a pit and backfilling the topsoil. The pit size is length × width× depth: 80×80×60cm.

B In the mountainous area with a slope of 10-25 degrees, a horizontal belt with a width of 2m should be built, and planting holes should be dug in autumn and winter with a specification of 60×60×50㎝.

C. For the hillside with a slope of 26-30 degrees, prepare the soil in blocks, dig planting holes in autumn and winter, and the specification is 60×60×50㎝. After planting, a semi-circular tree flat with a radius of about 1.0- 1.5m should be built.

(4) Applying base fertilizer and returning cultivated soil: 25 kg -30 kg of decomposed fertilizer is mixed with cultivated soil in each hole, and then 0.5 kg of calcium, magnesium and phosphorus is applied in each hole, which is mixed with soil and backfilled.

5] Planting: when planting, the seedlings should be righted, the roots should be stretched, and compacted by layers to make the soil and roots closely connected. It is best to plant on cloudy days.

[6] Post-planting management: keep the soil moist. Where conditions permit, water thoroughly after planting. In late April, check the survival situation. If dead seedlings are found, replant them immediately or make up the missing seedlings in the next spring.

(7) Soil management: osmanthus fragrans is fertilized twice a year. Apply base fertilizer in winter, and fully apply it during11-65438+February, so as to promote lush foliage and flower bud differentiation in the coming year; Topdressing in summer in July promotes the proliferation of autumn flowers. The soil in our county is generally short of phosphorus, so the fertilizer should be compound fertilizer with phosphate fertilizer as the main fertilizer, and sporadic planting should be mainly hole application, and continuous cropping can be hole application, furrow application or circle application, with 150g fertilizer applied to each hole each time. Dangui should pay attention to irrigation, but control watering when flowering, otherwise it is easy to drop flowers. After completing the plastic surgery, Dangui should not prune intensively, but only cut the branches with diseases and insect pests, weak branches, incomplete branches, endogenous branches and long branches. In the annual flowering period, it is forbidden to break the branches of osmanthus fragrans to prevent the tree from declining.

(8) Nursery of seedlings: after afforestation, it is nursed twice in the same year, and once in May and September, respectively, to cultivate mature seedlings; Cut the grass and loosen the soil once a year.

4, pest control

(1) osmanthus pests

A. Pests in osmanthus fragrans: mainly scale insects, mites (red spiders), caterpillars, etc. Acari, also known as red spider, the adult leaves were killed, which were grayish yellow with tiny yellow spots. In mid-May, the young leaves were deformed, uneven and yellow-brown patches.

B. Pest control: scale insects are used once every seven days in the early stage of larva discovery, and the pesticide is 800 times that of 40% omethoate; Mites: Use acaricides such as "Bajin Mite" and "Acaricide" 2-3 times a year in the growing season, which can effectively eliminate the harm caused by them; Moths and their larvae bite the leaves, destroy the veins and bite the leaves into gaps and holes. 90% trichlorfon 2000 times solution or 80% dichlorvos emulsion 1000 times solution can be sprayed 1-2 times, with an interval of 10- 15 days.

⑵ osmanthus disease

A. Disease types of osmanthus fragrans: anthracnose, leaf spot, etc. Anthracnose mainly damages old leaves, and the lesions are mostly at the tip and edge of leaves. At first, it is light brown spots, and then it expands into large gray spots. Leaf spot occurs at the tip and edge of leaves, which is brown spots at first, then expands into oval, long or irregular spots, with brown or yellow-green outer edges, grayish brown to grayish white center, and finally scattered to form small black spots.

B. The disease control method is to spray 70% thiophanate 1000 times solution or 75% chlorothalonil 1000 times solution every 5-7 days for three times continuously.

Pesticide varieties

Dosage used

two-fluid

Safety interval

Application method

Maximum number of uses

comment

Folimat

40%

Eight hundred

7— 10

Spray treatment for 2-3 times