Growth habit of Potamogeton rubrum
The following plants are mainly distributed in the middle and lower reaches of the Yangtze River and its south, as well as in northern India, and are produced in Liuyang City, Changsha County, Suzhou, Wuxi, Yixing, Liyang, Jurong and other places in Hunan. Like light, slightly tolerant to shade, but the color of leaves turns green on cloudy days. Strong adaptability and drought tolerance. Like warmth and cold resistance. Strong germination, strong branching ability and pruning resistance. It is barren-tolerant, but suitable for growing in fertile, moist and slightly acidic soil.
Propagation method of safflower following wood
1, grafting: grafting mainly adopts two methods: cutting and budding, which can be carried out from February to1October. Cuttings sprout well in spring, and September ~1October is suitable for budding. Take small and medium-sized plants of Ailanthus altissima as rootstock for multi-head grafting, strengthen the management of water, fertilizer and pruning, and make them leave the nursery within 1 year.
2. Cutting: Cutting can be carried out from March to September. Loose loess is selected as the cutting substrate, so as to ensure the ventilation and air humidity of the cutting substrate, keep warm but avoid direct sunlight, and pay attention to the ventilation of the cutting environment. Under warm and humid conditions, the cuttings form a red healing body within 20-25 days, and after 1 month, 3-9 new roots with a diameter of 0. 1 cm and a length of 1 ~ 6 cm grow.
3. Sowing: Sowing in spring and summer, the seed germination rate is high, and it germinates about 25 days after sowing. 1 year, can grow to 6 ~ 20 cm high, with 3 ~ 6 branches. The red meat quality of new roots of seedlings must be carefully managed in the early stage, and extensive management can only be carried out after the roots are lignified and browned. Due to the long seedling stage and slow growth, sexual reproduction of Zelkova schneideriana seedlings (atavism) appears, which is generally not used for seedling production, but for the breeding of safflower subculture.
Cultivation and management of scirpus carthami
1. Fertilization: Before transplanting safflower, base fertilizer mainly composed of decomposed organic fertilizer should be selected for fertilization, and combined with spreading or hole application of compound fertilizer, pay attention to mixing well to avoid root damage. In the growing season, neutral foliar fertilizer with 800 ~ 1000 times dilution was used for foliar topdressing and sprayed 2 ~ 3 times a month to promote the growth of new shoots.
2. Watering: In the rainy season in the south, attention should be paid to maintaining good drainage. In the hot and dry season, it is necessary to water 1 time in the morning and evening, combined with spraying water at noon to cool down. In the north, because the soil and air are dry, we must water them in time to keep the soil moist, and pay attention to spraying water in autumn and winter and early spring to keep the leaves clean and moist.
3. Pruning: Potamogeton rubrum has the characteristics of strong germination and pruning resistance. Light and moderate pruning can be carried out in early spring, early autumn and other growing seasons. Normal water and fertilizer management, 1 month can bloom, and the flowering period is concentrated. This method can promote the emergence of new branches and leaves, make trees look more beautiful, prolong the red period of leaves and promote the control of flowering period. Especially suitable for bonsai safflower collection to participate in flower exhibitions and trade fairs.
4. Plastic surgery
① Artificial sphere: safflower sill wood is extremely resistant to pruning and coiling, and artificial sphere is mostly used in tree shape. In the growing season, the mature leaves and branches of the red threshold wood are removed, and after about 10 days of normal management, the tender branches can be extracted again to grow bright red new leaves.
(2) Natural clustering: Red-sill wood has strong germination and strong branching, and can naturally grow into clusters.
③ Round-headed single stem: select stout branches, cultivate them into the trunk, and exclude other branches. When the trunk reaches the top, fix the trunk, select stout and upright branches on it as the extension branches of the trunk, that is, do central trunk culture, and then select 4-5 stout main branches to be evenly distributed around the central trunk, with branches scattered up and down.
Method for cultivate scirpus rubra
1. Single planting: select tall and plump plants to plant in important positions or focus points, such as near the entrance, courtyard or lawn, and make a landscape independently, and pay attention to the strong contrast with the surrounding landscape in order to obtain? A little red in the evergreen tree? The effect can play the role of the central viewpoint of the landscape or guide the line of sight.
2. Cluster planting: safflower and other plants are clustered in the garden green space, which not only enriches the landscape color, but also enlivens the garden atmosphere. If planted with green trees, it can play a icing on the cake. The main tree species, safflower, is planted in groups to form a scenic forest. The unique leaf color and posture are beautiful all year round, and its beautification effect is far better than that of pure green scenic forest.
3. Planting: densely plant annual seedlings of safflower in green space to form color blocks, which can be matched with Ligustrum lucidum, Rhododendron, Chinese rose, Elm and Buxus macrophylla in Phnom Penh, which can not only form color contrast through leaf color contrast, but also stagger flowering period. Therefore, it is appropriate to select a red strain with penetrating bone.
4. Sphere: the trees below safflower are trimmed into spheres and arranged in the green belt, which are mainly divided into two types: wool balls and fine balls. Hairballs are mainly trimmed and shaped after 1 ~ 3 years, and are mainly used to manage large-scale green spaces with a little rough. Fine balls should be trimmed and shaped for at least 3 years, mainly used in villas, courtyards and other exquisite gardens. Therefore, it is appropriate to choose the red strain of Tougu.
5, color bar: densely planted color bar with red flowers to follow the wood to play the role of enclosure and separation of space. The size of seedlings should be selected according to the specific use of colored fences. For example, in the green space, 70-80cm colored fences can be used to separate the space, while in the periphery of the green space, more than 2m colored fences can be used as green fences.
6. Color sculpture: directionally cultivate or shape the wood below safflower into green sculptures such as animals and geometric shapes, and put them in the green space as garden sketches. Therefore, it is suggested to choose the red strain of Tougu.
7. Pile landscape: With the characteristics of fast growth, large leaves and sparse branches, double-sided red flowers are directionally cultivated into a large pile landscape, which can be used for the greening of high-grade gardens and can also be used as the focus of flower beds.
8. Street trees: Carthamus tinctorius can be controlled by pruning or grafted with Zelkova schneideriana to cultivate small trees with bright leaves, which are mostly used as street trees in residential areas. Therefore, it is wise to choose red strain.
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