Jasmine belongs to a fertilizer-loving plant, so the fertility of the basin soil should be guaranteed to be sufficient, which can promote the jasmine to be jade-like in color and rich in flowers. Generally, from May onwards, apply 1 time light bean cake water every 7 days, and apply it thinly and frequently during the bud pregnancy and flowering period, about every 5 days 1 time. /kloc-Stop fertilization in October. When cultivated outdoors in rainy season, dry fertilizer should be applied instead, such as using bean cake powder (loosen the surface of the basin, add bean cake powder and cover it with soil). It can also be combined with turning pots to apply sufficient base fertilizer every 2 years. In addition, jasmine likes acidic soil, and 0.2% ferrous sulfate water is applied every 10 day during the growing period to keep the soil acidic. Proper water control of jasmine is the key to cultivation: jasmine likes to be wet, but is afraid of water accumulation. If the pot soil is too wet, it will rot roots and leaves and even die.

(1) every few days in spring and autumn 1 water.

② The temperature is high in summer, and the plants grow vigorously, so it is necessary to irrigate them thoroughly 1 time every day; When the potted plants choose the wetting environment, it is necessary to spray water on the leaves every morning and evening 1 time. It is necessary to loosen the soil frequently in rainy season so that there is no water in the basin.

(3) in winter, the basin soil should be kept moist. If it is watered too much, the roots will turn black and rot, and the leaves will turn yellow and fall off.

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Jasmine belongs to the genus Jasmine of Rhinodaceae, a perennial evergreen shrub, which is native to tropical and subtropical regions. Jasmine leaves are green in color, flowers are white and jade-like, and the fragrance is gentle and soft. It is known as the first of many fragrant flowers and has excellent ornamental value. At the same time, it also has high economic value. Jasmine is the most important fragrant flower for tea in China. Jasmine tea is made by scenting jasmine with tea, which makes the tea rich and refreshing, and also stores fragrant flowers. Tea absorbs flowers, flowers increase tea, and tea flowers are integrated. Jasmine tea is not only widely loved by Chinese people, but also unique and prestigious in the international market. Jasmine is an important raw material for extracting essence, and it can also be used for medicine. As a fragrant flower of tea, it can play a higher economic role.

I. Garden selection

Jasmine originated in subtropical zone, and adapted to high temperature and fertile soil. The requirements for ecological environment are: like light and fear of shade, like fat and fear of thinness, like acid and fear of alkali, like joy and fear of boredom. Therefore, when we choose the garden, we should be as close to its ecological environment as possible, and choose the land with sufficient light, deep soil layer, fertile and sour soil, sufficient water source, good drainage and irrigation and convenient transportation to plant jasmine. According to the fact that jasmine flowers must be picked every day and transported to the processing plant for sale after they enter the flower picking season, and the number of days of picking flowers is more than 200 days per year, so the place where jasmine flowers are planted should be within 0/0 km from the Jasmine Plant/KLOC-0, which is convenient for transportation and sales.

Second, variety selection

Jasmine belongs to Olea species, Jasmine genus and evergreen climbing shrub. According to the survey, there are about 60 varieties of Jasmine in China at present, among which the cultivated varieties are mainly single-petaled Jasmine, double-petaled Jasmine and multi-petaled Jasmine.

1. Single-petalled jasmine: The plant is short, 70-90 cm high, and the stems and branches are small and vine-shaped, so it is called liana jasmine. The flower buds are slightly longer, smaller and lighter, and the yield is lower than that of double-petalled jasmine, higher than that of multi-petalled jasmine, and it is not cold-tolerant, waterlogging-tolerant and weak in pest resistance.

2. Jasminum bicuspidata is the main variety cultivated in China for scenting scented tea. Its plant height is 1- 1.5 meters, it is upright, with many branches, thick and hard stems, dark green leaves, thick and shiny leaves, larger flowers than those of Jasminum unicolor and Jasminum multicolor, white and oily buds, and obvious wax. It has strong fragrance, strong growth and strong adaptability, and the output of flowers (more than 3 years) can reach more than 500 kilograms per mu.

3. Multi-petal Jasmine: The branches have obvious bulge, the leaves are dark green, the flowers are tight, round and small, and the top is slightly notched. The multi-petal jasmine flower has been in bloom for too long, its fragrance is weak and its yield is low, so it is generally not used as a flower for scenting scented tea.

Three, jasmine seedling technology

Jasmine flowers generally do not bear fruit (rarely bear fruit) after flowering, so it can only be propagated asexually in production. There are several methods, such as cutting, layering and rameting. Jasmine has strong regeneration ability, fast rooting and high seedling rate by cutting. Compared with layering method and branching method, it has the advantages of simple operation and material saving, so it is widely used.

1. layering propagation, layering propagation is to use the branches sprouting from the lower part of the jasmine plant or the branches with a certain length to press the middle part into the soil, so that it can produce new roots and become independent new plants after cutting off the mother branches. The premise is that there must be a mother tree of jasmine, and there are not many branches that can be pressed by each mother tree, which can not meet the large supply of seedlings. Generally, potted plants and ponds are used to replenish seedlings.

2. Plant propagation: Jasmine is a clustered shrub, and its rhizome can produce many adventitious roots. Plants over two years old often have several stems and branches, which can be used for plant propagation. The premise of this method is that there must be two-year-old jasmine mother trees. Moreover, the number of reproduction is lower than that of layering and cutting, which can not meet the needs of large-scale cultivation.

Cutting propagation seedbed seedlings occupy less land, and the land utilization rate is high, and about100000 seedlings can be propagated per mu. Because centralized cutting in the nursery is easy to manage and has sufficient room for selecting seedlings, the seedlings are of high quality and grow neatly, and at the same time, it is suitable for the requirements of mass production of seedlings, so it is widely used in production.

Operation method of cutting seedling:

(1) Select cuttings. The cuttings used for propagation mainly come from the branches cut during the annual pruning. It is necessary to choose mature branches without pests and diseases and with a certain thickness, and the middle and lower parts of the same branch are the best.

(2) Selection of nursery: Sandy soil or sandy loam with loose and fertile soil, sufficient water, convenient irrigation and drainage and convenient transportation is required.

(3) soil moisture leveling: before seedling raising in the nursery, the soil is thoroughly turned white, raked and leveled, and drainage ditches are dug around, with the soil moisture width of120cm, the ditch width of 25cm and the depth of 20cm, and the soil moisture is flat and the soil particles are fine. After the seedbed is fully wetted, the pre-bud herbicide-Dua mixture/kloc-0 is used. Cover the bed with plastic film when raising seedlings in winter.

(4) Cutting and processing of cuttings

Collect the branches cut in the annual overhaul in the shade, and organize manpower to cut cuttings. The operation method is as follows: select branches with 2-3 nodes and the length is about 1 0cm, cut off the leaves, level the upper end at about 1 cm from the axillary bud, and cut the lower end at about 45 degrees from the axillary bud1cm, and press 85 degrees.

Before cutting, the cuttings should be treated with chemicals. First, they should be soaked in 0/000 times solution of Spock for 3-5 minutes, taken out and dried. Then soak it in 50PPM rooting powder solution for 20-30 minutes, take it out and cut it on the seedbed according to the row spacing of 12 cm× 4 cm, and the top of the cutting is about 3 cm away from the soil surface during cutting. Each acre can be cutted/kloc-0.5 million cuttings.

(5) Seedbed management of cutting

The cuttage seedbed should keep the soil moist, pay attention to weeding frequently in sunny days, and keep the seedlings free of weeds. Seedbeds have small seedlings and few roots. To apply water and fertilizer, it is best to use clear manure water. Be diligent and apply fertilizer once a month. If pests and diseases are found in the seedbed, they should be prevented in time, and they can be sprayed once a month with the ratio of 1000 and/or 1000. After the seedlings grow to 6-8 months, there are more than 2 branches and two layers of roots, and the height is more than 30 cm before they can leave the nursery.

Fourth, transplanting

1. Transplanting period

Irrigation conditions can be carried out all year round. But spring and autumn are the best seasons, which are suitable for the root system of jasmine to survive and grow, and can be harvested in the same year as planting. Autumn temperature is also very suitable for jasmine root growth. In summer, the temperature is too high to adapt to the root growth of jasmine, and the leaves are easy to dry when transplanting, which affects the survival. In winter, the temperature is also low and windy, so it is easy to blow dry the leaves, and the slow growth of jasmine affects its survival.

2. Cultivation specifications

In order to facilitate the arrangement, planting should be started with soil moisture, and the soil moisture width should be in favor of fertilization, soil cultivation and harvesting. Generally, the soil moisture width is120cm, the soil moisture height is 20cm, and the soil moisture ditch width is 25cm. Dig a planting ditch with a width of 30 cm and a depth of 10 cm on both sides of the soil surface, with a plant spacing of 25 cm and a row spacing of 60 cm, and plant 4000 plants per mu.

3. Transplanting method

Select seedlings with plant height of more than 30cm, more than two branches, two layers of roots, normal leaf color, robust plants and no diseases and insect pests, cut off branches and leaves of more than 25cm, cut off excessively long roots, dip the roots with 0. 1% spake +0.3% calcium superphosphate solution for 3-5min, and then plant them in a planting ditch with a spacing of 25cm. The soil surface can be covered with bagasse, straw and sugarcane leaves.