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Key Technical Points and Methods for Gastrodia elata Management in Winter and Spring
After November, as temperatures gradually drop, the new Gastrodia elata tubers stop growing, their size becomes fixed, and they enter dormancy directly, so low-temperature freezing damage should be prevented. In particular, the arrow tubers (Jianma) are easily damaged by freezing during overwintering. It is best to use arrow tubers for medicinal purposes when harvesting Gastrodia elata in winter, and to sow or store the small tubers (Mima) and white tubers (Baima) in time for spring planting. If they are not harvested in winter, cold-protection measures must be taken before freezing, such as covering with tree leaves to keep warm and prevent freezing, and removing them the following spring to facilitate growth. The temperature should be maintained at 1-5°C, and the humidity should be maintained at 30%.
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High-yield Wild-simulated Cultivation Technique for Oyster Mushrooms in Winter and Spring
Oyster mushrooms produced using wild-simulated cultivation techniques not only taste as delicious as wild ones, but also truly achieve ecological, high-quality, high yields. Even in the cold winter and low-temperature early spring seasons, they can be grown in a relatively enclosed shade shed, making full use of ground heat to produce thick, tender, high-quality oyster mushrooms. This method increases yield by more than 60% compared with conventional cultivation methods, and by more than 40% compared with cultivation methods such as mushroom walls, with a biological conversion rate reaching more than 220%. The specific techniques for high-yield, high-quality wild-simulated cultivation of oyster mushrooms in winter and spring are as follows: 1. Mycelium culture: Use high-pressure or atmospheric-pressure sterilization
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Key Techniques for Summer Management of Spring-Planted Oyster Mushrooms
For oyster mushrooms sown in early spring, once summer arrives, rising temperatures and increased humidity not only inhibit the formation of mushroom buds but also encourage the breeding and spread of pests and diseases, making summer management essential. 1. Choose a location with higher ground and good drainage, dig a trench 60-80 cm deep and 50 cm wide, pack the four walls firm, and spread lime powder in the trench, or spray a lime emulsion with 800 times carbendazim solution. If pests or diseases have already appeared in the growing substrate, they should be dealt with first. For those already infected with contaminating microorganisms, scrape off the contaminated areas and soak the mushroom bags or blocks in lime emulsion or 800 times carbendazim solution; for those harmed by insect pests, soak them in 800 times dichlorvos, and after drying, arrange and stack them in the trench to a height of about 40 cm, then fill the trench with sandy loam soil at about 60% moisture content. The covering soil should be 20 cm above ground level, then pat it so that it is moderately firm, with the surface forming an arch shape.
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How to cope with severe weather in winter and spring greenhouse oyster mushroom production?
In winter and spring, severe weather such as snowfall, cold waves, strong winds, prolonged overcast fog, and sustained low temperatures often arrives uninvited. In mild cases it causes reduced oyster mushroom yields and lower quality; in severe cases it causes total crop failure. Therefore, prevention of and response to severe weather should be strengthened. Main preventive measures: wipe the greenhouse film to improve light transmittance; inspect the greenhouse facilities to ensure the greenhouse's insulation performance; prepare insulating and warming items such as straw mats and old greenhouse film. Response management measures: Cold wave and strong wind cooling weather: Before a cold wave and strong winds arrive, seal the vents tightly, cover the greenhouse film securely, and add a layer of intact old plastic film over the straw mats.
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Key Management Techniques for Garlic at the Green-Up Stage in Early Spring
In late February, as the weather gradually warms, the seedlings turn green and begin to grow adventitious roots from the lower part, and the garlic scapes and bulbs begin to differentiate. At this time, ensuring robust seedling growth and accumulating more nutrients for the differentiation of garlic scapes and bulbs is the key to achieving high-quality, high-yield garlic. Years of continuous cropping in major garlic-producing areas have led to a relative deficiency of trace elements (iron, copper, manganese, zinc, magnesium, molybdenum, boron, cobalt, etc.) and calcium in the soil. A lack of trace elements directly results in weak, poorly developed garlic plants. In severe cases, fungi and bacteria can invade, causing various diseases that lead to reduced yields or even total crop failure.
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Key Technical Points for Spring Field Management of Garlic
Water and fertilizer management after garlic turns green again is the key to a bumper garlic harvest. As the weather warms up, water and fertilizer uptake gradually increases after greening. Especially during the bolt-bearing stage and the bulb enlargement stage, garlic has its peak demand for water and fertilizer. Therefore, throughout the entire growth period of garlic, irrigation and topdressing should be carried out in a timely manner according to soil moisture, soil fertility and seedling conditions, with particular emphasis on watering the "three waters" well and applying the "three fertilizers" well. 1. Water the greening water well and apply the greening fertilizer well. By the Spring Equinox, garlic seedlings begin to turn green and grow. Because early spring soil temperatures are low, it is best to water the greening water at noon
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Key Technical Points for Spring Fertilizer and Water Management of Garlic
After garlic turns green again, its absorption of fertilizer and water gradually increases. Especially during the bolting stage and the garlic bulb enlargement stage, these are the peak periods of fertilizer and water demand. In terms of management, emphasis should be placed on watering the "three waters" well and applying the "three fertilizers" well. Water the green-up water well and apply the green-up fertilizer well. In spring, the soil temperature is low, so it is best to water the green-up water at noon to promote early seedling growth. Along with watering, apply 15-25 kg of nitrogen-phosphorus-potassium compound fertilizer per mu or 15 kg of potassium sulfate, then control water appropriately to promote root development. Water the bolting-promoting water fully and apply the bolting-promoting fertilizer heavily. Late March to early April is the period of rapid differentiation of garlic flower buds and clove buds
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How to prevent rice field eel diseases in spring? Garlic and salt solution works well
After overwintering, rice field eels begin to become active in spring when the temperature rises. At this time, they are very susceptible to saprolegniasis, skin rot disease, bacterial septicemia and other diseases, which can lead to death. If a clarified solution made by soaking fresh garlic and high-quality salt at an 80-100 fold dilution is promptly splashed into the breeding pond, once every 3-5 days, for 2-3 consecutive applications, splashing 2-3 kg per square meter of breeding pond each time, evenly sprinkled on the water surface, the rice field eels will not be infected by the above diseases, and the breeding survival rate will be high.
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What are the key technical points for spring garlic management?
Around Jingzhe (Awakening of Insects), as temperatures rise, Cangshan garlic enters the regreening growth stage; around the Spring Equinox, it reaches the rotting-mother stage (also called the mother-returning stage). Due to the continuous low-temperature and drought weather from last winter to this spring, garlic growth has been affected, the seedling condition is poor, and there are more garlic fields with weak seedlings, so management must be strengthened. I. Regreening stage management. Before and after regreening, spray once with a plant growth regulator or amino acid foliar fertilizer to enhance stress resistance and prevent damage to garlic from late spring cold. After the Spring Equinox, garlic is in the rotting-mother stage, during which garlic maggots are prone to occur, so pay attention to spraying pesticide to control seed
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Detailed Explanation of Key Points for Spring Management Techniques of Onions
I. Watering: Onions are generally not watered during the overwintering period, and there are no pests or diseases. In March to April, water lightly once with green-returning water; when entering the vigorous leaf growth period, appropriately increase irrigation; about 10 days before bulb expansion, carry out seedling control to suppress leaf growth; when there are 6 functional leaves, water thoroughly once, then control seedlings for 10 days to prevent excessive plant growth from affecting bulb expansion. After seedling control, the bulb begins to expand, which is the key period for topdressing and watering. However, because the temperature rises during this period, evaporation and plant growth are large, and it is the period with the highest water demand, watering should be frequent, often keeping
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