Is Manjusri Shahua poisonous?

Bulbs of Lycoris radiata are warm, pungent, bitter and toxic. As a medicine, it has the effects of inducing vomiting, eliminating phlegm, reducing swelling, relieving pain and detoxifying.

Lycoris radiata is ornamental, but its rhizome is poisonous, and its bulb contains alkaloid drops. But if you eat it by mistake, it may lead to poisoning, ranging from vomiting and diarrhea to central nervous paralysis, which is life-threatening.

Pharmacological research shows that the main medicinal components of Lycoris radiata bulb are lycorine and galanthamine. Lycorine and its derivatives have certain anticancer activity, anti-inflammatory, antipyretic, sedative and emetic effects, and are also effective in treating amebic dysentery. Galanthamine is a reversible cholinesterase inhibitor, which is used for paralysis, myasthenia gravis and polio caused by central paralysis diseases such as polio. At present, these components can be extracted on a commercial scale and have been used abroad. Experts in China are also conducting in-depth research to develop drugs that benefit mankind.

Extended data:

cultivation techniques

plant

It can be planted in the open air, potted in greenhouse, framed or hydroponic.

pot culture

The flowers on the other side prefer scattered light to strong light, so the light should not be too strong. Flowers on the other side usually have no requirements for soil. But after all, it is a southern flower, so the soil should be acidic, sandy and breathable. On the other hand, the flowers of Miscanthus mongolicus have ornamental value all year round on the ground, with leaves but no flowers, and with flowers and no leaves.

Lycoris radiata has strong adaptability, bulbs are dormant, and potted plants are needed in the north. Lycoris planted at the end of May should also be able to blossom. Suitable time for cultivation in the north: spring (April-May) is suitable for planting. Most varieties like warm climate, the highest temperature is less than 30℃, and the average temperature in ten days is 24℃, which is suitable for the growth of Lycoris radiata. After sowing 10 days, the roots grew vigorously and the leaves broke out one after another. The average daily temperature in winter is above 8℃, and the lowest temperature is 65438 0℃, which does not affect the growth of Lycoris radiata. It is not advisable to water too much, otherwise the roots will rot.

cultivate

Peel off the small bulbs around the main ball for reproduction. Trim the stubble of the cue ball, sun it for two days, and then plant it when the wound is dry. When covering the soil, the top of the ball should be exposed to the soil surface. Potted plants are big balls (more than 7 cm in diameter) that can bloom after growing for 3 years. They can be a ball in the pot or 3-4 balls in the cauldron. It should be planted shallowly so that 1/3- 1/2 of the ball lives on the soil surface. Water the flowerpot 1 time to make the soil slightly wet. Don't water until the new leaves grow. Apply liquid fertilizer 1 time every half month. When the leaves thicken and mature in autumn, you can stop watering them.

After germination, turn over the pot or change the pot soil in February-March. The culture soil can be made by mixing 2 parts of peat, 2 parts of garden soil and 1 part of perlite with a small amount of base fertilizer. Water less in the dormant period in summer, and often keep the basin moist in spring and autumn. In the growing season, topdressing 1 time pancake fertilizer every half month.

Lycoris radiata likes semi-shade, avoiding direct sunlight in summer, keeping semi-shade in spring and autumn, strictly controlling watering and stopping fertilization during wintering. Fourth, post-flowering treatment and pest control Lycoris radiata should be cut off after flowering to reduce the loss of nutrients. The management of Lycoris radiata is extensive, and the common diseases are anthracnose and bacterial soft rot. Before planting, soak bulbs in 0.3% copper sulfate solution for 30 minutes, rinse with water, and dry before planting. Spraying 50% carbendazim wettable powder with 500 times solution every half month. At the initial stage of the disease, 50% diphenhydramine was sprayed with 2500 times solution.

Cultivation environment

The planting depth should not be too deep, and the top of the bulb should be just buried in the soil. For sandy soil with good drainage, loose cultivated soil and acid soil, appropriate base fertilizer should be applied when planting, and irrigation should be given after planting; Irrigation should be done frequently during the vegetative growth period to keep the soil moist, but no water should be accumulated to prevent bulbs from rotting. Adequate water supply must be provided from 20 days before flowering to flowering to achieve neat and consistent flowering and easy to maintain flowers.

References:

Sargassum manjuensis (Amaryllidaceae) _ Baidu Encyclopedia