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Zhang Heshan: A Great Wall Guardian in Qinhuangdao, Hebei
Qinhuangdao, Hebei: Zhang Heshan, Guardian of the Great Wall
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Huanghua Farmers Join with Cows as Shares, Fattening Their Wallets
Huanghua Farmers "Join with Cows as Shares" to Fatten Their Wallets
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Detailed Explanation of Black Swallow-wort Planting Techniques and Cultivation Management Methods
Planting Techniques for Black Swallow-wort
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Identification and Control of the Angelica Swallowtail Caterpillar Pest
The angelica swallowtail, also known as the fennel swallowtail, belongs to the order Lepidoptera, family Papilionidae. 1. Damage situation: The larvae cause damage, feeding on leaves at night, creating notches, and in severe cases eating all the leaves so that only the petioles and veins remain; they also feed on flowers and fruits. This insect has a large appetite, seriously affecting the growth of angelica and reducing yield. 2. Morphological characteristics. Adult: A large butterfly, with spring and summer forms. The summer form has a body length of about 25 mm and a wingspan of 90 mm; the spring form is slightly smaller. The body is yellow, with black stripes running longitudinally along the back. Both forewings and hindwings are yellow,
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Technique for Cultivating Oyster Mushrooms by Combining Soybean Stalk Bags with Wall Cultivation
Using soybean stalks as the growing substrate and combining bag cultivation with wall cultivation to grow oyster mushrooms can reduce costs and increase benefits. Preparing the substrate: select dry, mold-free soybean stalks, sun-dry them for 2-3 days, then crush them. Substrate formula (by weight): soybean stalk powder 78%, wheat straw 10%, soybean cake 5%, cornmeal 2%, gypsum 1%, superphosphate 3.5%, urea 0.5%. Add 130 kg of water to the substrate, mix well, then pile it up for fermentation, turning the pile 3 times during fermentation. Bagging and inoculation: spread out the fermented
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Detailed Explanation of the Wall Soil-Covering Cultivation Technique for Oyster Mushrooms
After oyster mushrooms produce three flushes, water and nutrients are heavily depleted, and yield drops sharply. With full soil-covering cultivation, not only do the mushrooms get covered in a lot of soil, but the mushroom quality is also brittle and the selling price is low. With the wall soil-covering method, oyster mushrooms not only increase in yield but are also good in quality and do not get covered in soil. The specific method is as follows. 1. Making the mushroom wall. Take the mushroom logs after the second and third flushes have been harvested, use a knife to cut one end of the mushroom bag into a 10 cm long bag tube, and slip it over the other end of the mushroom stick, arranging 2 sticks per row. Place the end with film on the outside, and in the middle of the two mushroom tubes the first layer is spaced 30
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How to prevent diseases in oyster mushroom wall cultivation? Remember these five points
Disinfection treatment of the fill soil When cultivating oyster mushrooms in walls, the fill soil must be clean soil and must be disinfected before use. Two kinds of fill soil should be prepared: one for sealing the edges, for which soil with greater stickiness should be chosen to prevent the mushroom wall from leaking water; the other for internal filling, for which fertile garden soil should be chosen. Whichever kind of soil is used, it must be dug from more than 10 cm below the ground surface and sun-dried for 3-4 days, then mixed evenly with 1% lime and 0.1% carbendazim for disinfection; for the nutrient soil used as internal filling, add an additional 0.5% phosphate fertilizer
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Combining bag cultivation and wall cultivation for oyster mushrooms multiplies yields
According to trials, using soybean stalks as the raw material and growing oyster mushrooms with a combination of bag cultivation and wall cultivation can keep the biological conversion rate steady at around 200%, and at best up to 300%. The specific method is as follows: For preparing the culture material, select fresh, dry, mold-free soybean stalks, sun them for 2 to 3 days, and crush them with a grinder with a 1 cm screen hole diameter. The formula is: soybean stalk powder 78%, wheat straw 10%, soybean cake 5%, gypsum 1%, superphosphate 3.5%, urea 0.5%, corn flour 2%, water 130%. Mix the culture
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Key Techniques for Raising Southern Yew (Taxus wallichiana var. mairei) Seedlings from Seed
The southern yew (Taxus wallichiana var. mairei) combines medicinal, timber and ornamental value, and has high development and utilization value. Because its seed coat has poor permeability and the dormancy period is long, propagation from seed is difficult. But as long as you grasp the biological characteristics of the southern yew and strictly follow the technical procedures, seedling raising is certain to succeed. The specific operations are as follows: 1. Nursery site selection and fertilization The nursery site should preferably be a paddy field with deep soil, loose structure, rich organic matter, good drainage and no exposure to afternoon sun (it must be paddy field soil from that year's harvest). After harvesting the mid-to-late rice, once the soil is dry, plow deeply once
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Characteristics of 1-year-old Taxus wallichiana var. mairei (southern Chinese yew) seedlings and key points of seedling-stage management
For container seedling raising of Taxus wallichiana var. mairei (southern Chinese yew), a container size of 8cm×12cm is appropriate. After sowing, the soil temperature should be in the range of 18-25°C; after about 25d the seeds can break through the soil and germinate, with uniform germination and a high germination rate. If the temperature is below the lower limit, the seeds are difficult to germinate, and the germination rate is low and uneven. After the seeds germinate, from early June to early October, shading with a shade net of about 50% light transmittance is required. The seedlings have strict requirements for water and fertilizer; in the middle and late growth stages, more phosphorus fertilizer should be applied to promote the increase of ground diameter, root system and biomass.
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