Cutting and Rapid Propagation technique of Chimonanthus chinensis

The reproduction of Lysimachia chinensis can be done by sowing, dividing plants, cutting and so on. Specialized production mostly uses softwood cuttings, which can obtain a large number of seedlings in a short period of time for engineering use.

First, the preparation of bed insertion: in order to improve the survival rate of transplanting, container seedlings are mostly used now. After years of experiments, we have adopted the method of cutting directly in the nutrition bowl. The nursery bed is generally made into a seedbed with a width of 1.5 meters, unlimited length and a depth of 20 to 30 centimeters. In dry areas where water is scarce, plastic film is used to prevent leakage. The size of the nutrition bowl depends on the actual application. Qianchi has strong tolerance, a wide range of adaptation, and lax requirements on the matrix. In order to facilitate the operation of workers, the loose non-caking soil is the best. After the nutrition bowl is loaded with soil, it is placed on the seedling bed for reserve, and the seedling bed with the nutrition bowl is irrigated and soaked for cutting use.

Second, cuttings: Qianqu cuttings should use softwood cuttings, because the branches after flowering have been lignified, and it is not easy to root after cuttings. After the plant sprouts, the shoots grow rapidly, the branches are stout, and the cuttings are cut before the lateral buds grow, usually about 20 cm long. In order to prevent the cuttings from dehydration, the cuttings should be cut while cutting, and it is best that the cuttings do not wilt.

Third, cutting time: if it is large-scale production, it can be achieved by strengthening the management of seedling nursery. Throughout the growing season, cuttings are cut continuously for propagation. The specific cutting time is more flexible, mainly depending on the growth of the mother plant. In the northern region, generally from the middle of May, when the branches of the mother plant grow to more than 30 cm, the main buds begin to be cut for cutting. After picking strips, the management of seedling nursery should be strengthened, weeds should be removed in time, fertilized and watered. When the lateral buds are available, continue to cut the cuttings.

Fourth, anti-season cutting: in late June, most of the plants have reached the flowering stage, at this time, if the production needs, the parts above the flower buds can be cut off with flat cutting, strengthen fertilizer and water management, promote the plant to grow new tender strips and cut the cuttings.

Fifth, the management after cutting: Qianqingcai tender strip water planting, slow seedling fast, not wilting. If the sun is too strong when cutting, shading can be done for a week. In the later stage of management, we should pay attention to the nursery bed can not lack of water, about 15 days after cutting can take root, 20 days to form plants. (the author's unit is the Agricultural Bureau of Anxin County, Baoding City)

Cuttings cut on May 16

All survived on June 1st

The technology of rapid propagation by cutting can be propagated by sowing, dividing plants, cutting and so on. Specialized production mostly uses softwood cuttings, which can obtain a large number of seedlings in a short period of time for engineering use. First, the preparation of bed insertion: in order to improve the survival rate of transplanting, container seedlings are mostly used now. After years of experiments, we have adopted the method of cutting directly in the nutrition bowl. The nursery bed is generally made into a seedbed with a width of 1.5 meters, unlimited length and a depth of 20 to 30 centimeters. In dry areas where water is scarce, plastic film is used to prevent leakage. The size of the nutrition bowl depends on the actual application. Qianchi has strong tolerance, a wide range of adaptation, and lax requirements on the matrix. In order to facilitate the operation of workers, the loose non-caking soil is the best. After the nutrition bowl is loaded with soil, it is placed on the seedling bed for reserve, and the seedling bed with the nutrition bowl is irrigated and soaked for cutting use. Second, cuttings: Qianqu cuttings should use softwood cuttings, because the branches after flowering have been lignified, and it is not easy to root after cuttings. After the plant sprouts, the shoots grow rapidly, the branches are stout, and the cuttings are cut before the lateral buds grow, usually about 20 cm long. In order to prevent the cuttings from dehydration, the cuttings should be cut while cutting, and it is best that the cuttings do not wilt. Third, cutting time: if it is large-scale production, it can be achieved by strengthening the management of seedling nursery. Throughout the growing season, cuttings are cut continuously for propagation. The specific cutting time is more flexible, mainly depending on the growth of the mother plant. In the northern region, generally from the middle of May, when the branches of the mother plant grow to more than 30 cm, the main buds begin to be cut for cutting. After picking strips, the management of seedling nursery should be strengthened, weeds should be removed in time, fertilized and watered. When the lateral buds are available, continue to cut the cuttings. Fourth, off-season cutting: in late June, most of the plants have reached the flowering stage, at this time, if the production needs, the part above the flower bud can be cut off with flat cutting, strengthen fertilizer and water management, promote the plant to grow new shoots and cut the cuttings. Fifth, the management after cutting: Qianqingcai tender strip water planting, slow seedling fast, not wilting. If the sun is too strong when cutting, shading can be done for a week. In the later stage of management, we should pay attention to the nursery bed can not lack of water, about 15 days after cutting can take root, 20 days to form plants. Cultivation techniques of crape myrtle

Crape myrtle cultivation techniques-crape myrtle alias hundred days red, the poet praised "who says that there is no hundred days, crape myrtle often blossoms for half a year." From midsummer to Mid-Autumn Festival. Ornamental cultivation in China has a long history of 1500 years. Crape myrtle, also known as the red, itchy tree, is a deciduous shrub of the family Lycopodiaceae, crape myrtle, or cultivated into small trees. The height of plants planted in the ground can be up to 3 meters to 6 meters or more. The gray-green bark is flaky, the trunk is smooth, and the whole tree trembles slightly, so it is also known as the itchy tree. The branchlets are slightly quadrangular. Simple leaves opposite elliptic to Obovate, some long oval, smooth glabrous, only dorsal main vein slightly pilose, petiole very short. Panicle terminal at the end of the current year's branches, 6 cm to 20 cm long, flowers in red, pink, pansy, white and other colors, flower diameter about 3 cm 4 cm, petals wrinkled, calyx green and smooth, stamens numerous, uneven length, florescence from July to October. The capsule is round or oval, containing many seeds and maturing from September to October. The seeds are on the branches throughout the winter.

Crape myrtle about 40 varieties, common varieties are Cuiwei, shorter plants, light leaves, weak growth, lavender flowers; silver myrtle, white flowers, slightly light snow green; red myrtle, pink flowers.

Crape myrtle is native to central China and is widely cultivated in the north and south. It is a subtropical positive tree species. Sexual preference for sunny, warm and humid climate, slightly resistant to semi-shade, drought and waterlogging, extreme heat, but also a certain degree of cold resistance, most areas in the north can survive the winter in the open field. Soil cultivation requires a neutral light loam with deep and fertile soil layer and good drainage, which grows poorly in clay. Potted plants need to use loose and fertile sandy soil containing humus.

Crape myrtle is usually cultivated with hard branches in spring and soft branches in summer. The hardwood is planted in spring. Before sprouting in early spring, the sturdy branches of the previous year are collected and cut into 20 cm segments. According to the article "hibiscus cultivation" in the previous issue, the operation of burying cuttings is introduced. The survival rate can be close to 100%, and the plant height can reach about 1 meter in the same year. When the rainy season comes, the soft branches can be cut in summer, and the semi-mature branches of the same year are collected, which are 10 cm to 15 cm long. The lower leaves are removed, and the cutting depth is no more than 1 inch 3, and the seedlings are planted in pots or on the ground in the following spring.

The miniature crape myrtle introduced in recent years, with a plant height of only 20 cm to 30 cm, is sown in the early spring room. The inner diameter of the seedling is 10% small pot, the seedling height is about 10 cm, and the seedling height is about 10 cm. Small potted flowers with plump and leafy flowers can be developed that year, which can enter thousands of households and be placed in the courtyard and balcony to watch.

General crape myrtle (large) varieties planted in the open field in the garden, first of all to set the stem, retain 30 cm to 40 cm trunk short, so that lateral branches from the trunk, do not make adult plants grow into shrubs. In addition to applying an appropriate amount of base fertilizer at the time of planting, it is appropriate to apply fertilizer again after autumn every year, and pay attention to proper watering in dry season. Crape myrtle is resistant to pruning and should pay attention to continuous branch renewal. The flower buds are formed on the top of the new shoots of the same year, and the branches are evenly sparse and cut short every year after autumn or before germination in early spring, leaving only one or two bud eyes at the base. the new shoots germinate vigorously, the flowers bloom vigorously, and after the summer flowers bloom, they can continue to shoot and blossom again in autumn.

General varieties of crape myrtle pot, after the pot, all branches should be short cut, each branch only leaves 1 to 2 lateral buds, so that it forms a plump and dwarf plant posture. The old pile can also be dug, and the roots and branches can be moderately reshaped and trimmed into a basin to make bonsai to watch.

Crape myrtle flowers are mostly in the middle of summer and bloom in the hot sun, which makes people feel refreshed. In addition, crape myrtle has strong resistance to sulfur dioxide, hydrogen fluoride and chlorine in the air, so it is a good environmental protection tree species.