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What are the control methods for root rot in Schisandra chinensis?
Root rot in Schisandra chinensis, commonly known as "rotten neck" disease or "strangle neck" disease, is one of the main diseases in Schisandra chinensis cultivation. At present, the affected area is relatively widespread and the damage is relatively severe. The disease generally occurs from May to early August. When the disease begins, the epidermis at the junction of the root and the ground (the root crown area) turns black, and further the cortex rots and falls off, forming a ring, the leaves wilt, and after a few days the entire plant dies. The cause of the disease is related to a physiological disorder. In early spring and late autumn, the ground temperature changes drastically between day and night, with a large temperature difference; the tissue at the root crown area is tender, disease resistance is reduced, and the cortex is damaged by freezing and infected by fungi, all of which can cause rot and disease. Waterlogged, low-lying land and relatively heavy clay soil have severe disease incidence, and plants that are not robust in growth and have poor vine maturity have more severe disease incidence.
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Detailed Explanation of Schisandra chinensis Seedling Cultivation Techniques, Master All the Key Methods
Schisandra chinensis, as a traditional Chinese medicinal herb, is the finest among the Schisandra species, mainly growing in the eastern mountainous areas of Liaoning Province. In recent years, the price of Schisandra has risen in the market, with supply falling short of demand. The main reasons are: first, as China joined the WTO, the export volume of traditional Chinese medicinal herbs increased, and market demand for Schisandra grew; second, with the development of animal husbandry, the wild resources of Schisandra have been damaged, especially since goats like to eat Schisandra. In the past two years, artificial cultivation of Schisandra has begun in Liaoyang, Dandong and other areas, but due to immature seedling cultivation techniques, many farmers cannot produce seedlings or have very low germination rates.
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Detailed Explanation of the Harvesting and Processing Methods and Uses of Lingzhi (Reishi Mushroom)
Harvesting and Processing: Lingzhi generally requires 50-60 days from inoculation to harvest. When the edge of the cap stops growing and brownish-red basidiospores appear on the hymenium beneath the cap, it indicates that the fruiting body has matured, and it can then be harvested. Cut it off from the middle of the stipe with a small knife, taking care not to crack the cut surface, then spread it out to air-dry or dry it at low temperature. If collecting spore powder, place clean plastic sheeting or smooth, clean paper under the fruiting bodies on the cultivation rack, collect with a bristle brush, and after the spore powder has been sun-dried and dried, store it in plastic bags for medicinal use. Uses:
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Harm and Control Methods of the Lingzhi Mushroom Fly
The large mushroom fly, scientific name Neoempheriasinica, also known as the Chinese new mushroom gnat, belongs to the order Diptera, family Mycetophilidae. This insect is mainly distributed in Jiangsu, Hubei, Shanghai, Beijing and other places, and occurs mostly in the relatively damp and shady places of air-raid shelters and mine tunnels. In spring and autumn, the larvae of this insect damage edible fungi such as lingzhi (Ganoderma lucidum), oyster mushroom, shiitake, wood ear, lion's mane, and enoki mushroom. The damage is characterized by the larvae feeding on lingzhi mycelium and fruiting bodies, leaving boreholes at the damaged sites, and also excreting mucus and frass that contaminate the fungal bodies, lead
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Detailed Explanation of the Methods and Techniques for Making a Goji Berry Bonsai
Goji berry (Lycium chinense) is a semi-evergreen shrub with arched, vigorous branches; its roots are like swimming snakes, gnarled and full of grace; in autumn and winter, it is heavy with red berries, earning it the name "snow-pressed coral," making it an excellent material for bonsai. The specific method for making a goji berry bonsai is as follows: Digging up the stump In early April, when the goji berry just begins to sprout, select a stump with a good shape, first shorten the long branches, cut off the messy branches, dig carefully, extract the complete roots, and immediately place them in a plastic bag, tie the opening tightly to prevent moisture evaporation. Soil and pot Select a flower pot with a diameter and height of 20 cm
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How to solve the weeding problem in dry Pinellia ternata? An analysis of practical methods
Dry Pinellia ternata is a dicotyledonous plant. In the cultivation process of this medicinal material, the weeding problem is rather tricky, and there is currently no clear and effective method; it is still mainly manual weeding, and no herbicide weeding trials have been conducted. It is said that an expert specializing in Pinellia once used glufosinate after sowing dry Pinellia, with slight effect, but we do not know the specific dilution concentration. You might try using glufosinate starting from a low concentration (100-fold solution), testing in a small area with a gradient of ratios, and after observation, once it is confirmed that the herbicide has a clear killing effect on other weeds and
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Dry Pinellia Greenhouse Planting Methods and Technical Key Points
Dry Pinellia, also known as three-leaf pinellia, three-step jump, and hemp jade fruit, is a commonly used Chinese medicinal herb, with wild distribution throughout both northern and southern China. In recent years, due to people's reclamation and utilization of barren hillsides and the extensive use of herbicides in farmland, its ecological environment has been damaged, resources have decreased year by year, and prices have continued to rise. According to surveys, dry Pinellia products are currently scarce in seventeen specialized medicinal herb markets nationwide, supply has fallen short of demand, and the market price has remained firm at 36-42 yuan/kg. Therefore, the market prospects for artificially cultivating dry Pinellia are very broad. In recent years, we
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Methods for Site Selection and Land Preparation for Angelica sinensis Cultivation
1. Seedbed site: According to the growth habits of Angelica sinensis seedlings, choose a plot surrounded by mountains on all sides, with loose, fertile soil, high humus content, sheltered from the wind, with short sunlight duration, and cool and moist conditions for raising seedlings. Angelica sinensis seeds are small, and the young sprouts have weak soil-breaking strength, so fine land preparation is required to ensure normal emergence. Plow the land in the previous year to allow the soil to fully weather, or plow in April to May of the current year, preferably three times. The first and second plowing should be 24-30 cm deep, and the third shallow plowing 9-15 cm. Dry and burn the weeds, spread them out and plow them into the soil, pick out all stones and unburned weeds, break up clods, level the ground, and then apply 5000 kg of farmyard manure per mu as base fertilizer. Then level and make beds along the mountain contour, with a bed width of 100-120 cm and a bed height of about 25 cm. Dig drainage ditches around the perimeter to facilitate drainage, with a ditch width of 18-24 cm and a depth of 15 cm. Raising seedlings under such conditions results in dense plant growth, mutual shading, leaves growing upward, less sugar accumulated through photosynthesis, more nitrogen absorbed from the soil, and a low bolting and flowering rate. If a site with abundant sunlight and dry, barren soil is chosen for seedling raising, even with sufficient manure and fine land preparation, the strong sunlight and dry soil will result in fewer seedlings emerging, leaves spreading flat, a large nutritional area for plants, high sugar accumulation through photosynthesis, drier soil, less nitrogen absorbed from the soil, and consequently a higher bolting and flowering rate. This should be given serious attention.
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A Detailed Explanation of the Processing Methods and Key Technical Points for Angelica sinensis
The pharmacological effects of Angelica sinensis (dong quai) are very broad, and it is an extremely commonly used traditional Chinese medicine. Therefore, it is often made into different decoction pieces for use. The common decoction pieces mainly include "whole dong quai," "dong quai body," "dong quai tail," "stir-fried dong quai," "dong quai charcoal," "oil-stir-fried dong quai," "wine-stir-fried dong quai," and so on. They are described separately below. (1) Whole dong quai: take the raw Angelica sinensis medicinal material, remove impurities, wash clean, pile and moisten until thoroughly penetrated, cut into thin slices, and dry in the shade or at low temperature. (2) Dong quai body: wash the dong quai body clean with water, moisten until
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Key Techniques and Detailed Methods for Seed Saving of Angelica sinensis
For raising seedlings and transplanting, seeds of medium maturity produced from flowering in the third year should be used. A single plant, besides the main bud, has many lateral buds. Both the main bud and the lateral buds can bolt, flower and set seed. Flowering branches that bear seeds can also grow from the axils of the main stem. Because the growth periods of the various flowering branches differ, flowering times and seed maturation occur in succession. Therefore, when collecting seeds, one must frequently observe in the field. Looking down from the top of the flowering stem, when the first umbel appears pink, the second umbel appears light red, and the third umbel appears pale yellow, it is time to harvest (generally in early to mid-August). Seeds that are over-mature, after seedling raising
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