Peony breeding method (basic knowledge): the best breeding time: spring or early summer is the best breeding time.
Best growing soil: It needs fertile and loose sandy soil with good drainage.
Humidity requirements for growth: Peony is drought-tolerant, and the water content should not be too much, so it is advisable to use a humid air environment.
Optimum growth temperature: Peony likes warmth, but it is not cold-resistant. It is vulnerable to freezing damage below 10℃, and the normal growth temperature is 24-26℃.
Best growth light: I like sunshine, but it should be a little cool in midsummer.
Matters needing attention in peony cultivation: Fertilization: The cultivation soil is made of mixed carbon soil, garden soil and coarse sand with Shaoxing organic fertilizer as base fertilizer. May -65438+ 10 can be fully watered during the vigorous growth period. Maintain proper temperature and apply thin fertilizer 1 time every half month. It is advisable to shade slightly in summer and pay attention to ventilation. After autumn, reduce watering, the soil should be dry rather than wet, and stop topdressing.
Key points of watering: Don't water too much during the growing period, but long-term water shortage or insufficient water supply will also affect its growth. Generally speaking, spraying water once every two days can make the sphere redder and brighter. It's hot in summer, so pay attention to shading the sun and don't burn the ball in the scorching sun. At the same time, attention should be paid to prevent heavy rain from pouring in summer rainy days. Water supply in the growing period is basically dry and then water supply, which can be drenched on the head, and it is easy to rot due to poor ventilation. Water supply in spring must be gradual, and pay attention to the weather changes.
Pruning essentials: To prune peony, some miscellaneous roots and dead roots should be pruned after the pot is raised, so that peony can grow as soon as possible.
Pot soil replacement: replace the pot soil once a year before and after leaving the house, and add an appropriate amount of culture soil. Sticky, stagnant and barren soil should not be used, otherwise it will easily lead to root tissue necrosis. When taking off the basin, pay attention to handle it gently to prevent the ball from being knocked off the rhizome.
Breeding points: grafting is the main method.
Greenhouse cultivation can be carried out all year round, especially in spring or early summer, with fast healing and high survival rate. Choose thick and tender rootstocks (commonly used measure, cactus, cactus column, tiger thorn, etc. ), and flatten the top for standby; Select robust sub-balls with a diameter of about 1㎝ from the mother plant as scions, peel off the sub-balls, flatten them with sterilized sharp blades, stick the sub-balls close to the incision of the rootstock, align the center of the ball with the column of the rootstock, and tie them tightly with thin threads or thin rubber bands, with moderate tightness. Curing at room temperature of 25-30℃, loosening for 7- 10 days, and curing for another two weeks. If the joint is intact, it means it has survived. Usually you can watch it in two months.
Pest control: The main hazards are stem rot, gray mold and red spider, so for stem rot and gray mold, we can spray 50 {BF} carbendazim wettable powder with 2500 times solution. It is suggested to spray 40 {BF} dimethoate EC 1000 times to kill tetranychus urticae.
Soil culture method of peony: 1. Because peony is an artificially cultivated horticultural variety, its bulbs and stems have no chlorophyll, or chlorophyll is seriously lacking, so it cannot be cultivated by itself, and it must be grafted on rootstocks to grow and reproduce.
2. Peony cultivation should create a warm, dry, sunny and well-ventilated environment. Grasping its characteristics of not being cold-resistant, afraid of high temperature and insufficient light, we must pay attention to avoid the damage of the rootstock triangle, because once the triangle is damaged (withered or rotted), peony will lose its vitality.
3. In peony management, attention should be paid to turning over pots and pruning roots in spring. The pots should be slightly larger, and the cultivated soil has strong water retention and drainage ability. In summer, attention should be paid to cooling and proper shading. In winter, we should fully receive sunlight, and balls, rootstocks and pots should fully see the light. When watering, be sure to avoid the ball spraying out, causing spots and affecting the appearance.
Key points of daily maintenance: perennial fleshy spherical plants. Because it has no chlorophyll, it cannot carry out photosynthesis and cannot be autotrophic. Green cactus plants must be grafted to grow. This plant is very small, and its spheres are brightly colored. Well-drained sand flowerpot. Fertilize once every 3~4 weeks during the growth period; Water the soil after it dries. I like plenty of sunshine, and I can get a little shade when it is hot in summer. Keep the basin soil slightly dry in winter, and the temperature is above 10℃.
Extended knowledge of peony: 1. Pharmacological application: Peony bark tastes pungent, bitter and slightly cold. Its root bark contains paeonol and paeoniflorin, as well as benzoic acid, phytosterol and alkaloids. Pharmacology: It has the functions of lowering blood pressure, calming, relieving convulsion, relieving fever, relieving pain, resisting inflammation and bacteria.
2. Application of Feng Shui: Peony plants are small and exquisite, with bright colors and delicate flowers. The plants of Peony Crown and Longfeng Peony are strange and interesting, and they are all good indoor potted plants. Especially the red peony grafted with measuring ruler, the green columnar measuring ruler has bright red cactus, which is a good omen for friends and relatives on holidays.
3. Garden application: small potted plants. Red spherical, dazzling and attractive, can be used to decorate balconies, desks, bookcases and antique bookshelves. It can be grafted on the mountain shadow, or it can be processed into a combined bonsai with other succulents, which has a unique flavor. It can also be matched with other small succulents to form a landscape frame or bottle landscape, which is also unique. If the exhibition or indoor environment is arranged in blocks, it will be bright and attractive.