Osmanthus, also known as hibiscus, is an evergreen small tree. It is a precious ornamental aromatic plant that blooms in the fall and is refreshing and refreshing.
Osmanthus fragrans is a specialty of our country and it is one of the main aromatic raw materials in China. Osmanthus extract aromatic oils, is a valuable spice. The essences and perfuming products formulated with sweet-scented osmanthus oil, such as sweet-scented osmanthus wine, sweet-scented osmanthus sugar, sweet-scented osmanthus candied fruit, perfume, soap, etc., are well sold both at home and abroad.
1, the main varieties. There are many varieties of sweet-scented osmanthus, such as Jingui, Yingui, Osmanthus, Sijigui, and Moon-laurel. Among them, the fragrance of osmanthus is strong, the flowering is numerous, and the ornamental and economic value are high. The osmanthus in the four seasons is long, with the exception of the harsh winter and summer heat, it will bloom in autumn, but the tree is short and the aroma is light. It is only suitable for planting in the garden.
2, breeding methods. Osmanthus can be used for sowing, butt joints, cut joints, layering, cuttings and other methods of breeding, generally rely on the grafting and cutting propagation. The rootstock that is attached to the ligustrum is ligustrum ligustrum, which can be flowered in the year immediately after the jointing. A large number of sweet-scented osmanthus seedlings can be propagated using the cutting method. The time is selected in February when the sap is about to flow. In order to promote rooting and prevent diseases, the cuttings are sprayed with 800-1000 times the dipterex solution one month before cutting. - After 15 days, disinfect with lime water, soak the base of the cutting strip with a 1010-6 naphthaleneacetic acid solution for 8-10 hours before inserting. The cuttings are inserted into the soil depth of 2/3, immediately after the cuttings are irrigated, and the humidity is always maintained. A shade net can also be set up on the seedbed. After about 2 months, it will take root. The second year is transplanted once, and the third year can be planted out of the garden.
3, cultivation points. Sweet-scented osmanthus hi dry, in addition to pay attention to watering moisturizing transplant, generally do not need irrigation, it requires good soil drainage. Usually, the big tree is planted once a year, and the young tree is pumped 2-3 times. It can be applied once a year in December, June or September each year before branching or flowering. The early spring budding should not be applied with heavy fertilizer. The fertilizer is preferably pig cow dung and bean cake. During the period from May to October, cultivators, soils, and weeds should be promptly maintained to maintain soil moisture and avoid weeding with trees.
Osmanthus fragrans has developed root systems, strong fibrous roots, and strong adaptability. Transplanting is easy to survive. Generally, the cultivars are less than 20 years old and are easy to transplant and survive in the spring and autumn.
4, harvest processing. In the flowering season in September and October, Osmanthus fragrans was collected, mixed with alum (3.5%) and squeezed. After a few days, the juice was squeezed to maintain the weight of the original flower, and then the same amount of sugar was mixed into the altar. Made osmanthus buns, osmanthus dumplings, sweet-scented osmanthus wine and sweet-scented osmanthus candied fruit spare. The sweet-scented osmanthus can also be extracted by using petroleum ether as a solvent. The leaching solution is clarified, filtered, concentrated under normal pressure and low pressure, and finally deetherified to make osmanthus flower extract. The yield of osmanthus extract was about 0.17%. Extract the extract with ethanol repeatedly, can be obtained osmanthus pure oil, which is natural valuable spices. The osmanthus slag leached after adding osmanthus essence and sugar into osmanthus sugar can be used to prepare general foods.
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