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Key Technical Points for Improving the Survival Rate and Yield of Sexual Propagation of Gastrodia elata
Tuyan is one of the main Gastrodia elata production areas in Hubei, with wild Gastrodia elata widely distributed, and both the climate and soil within its boundaries are suitable for sexual propagation of Gastrodia elata. Combining local environmental conditions and based on practical experience, the author has summarized the key techniques for sexual propagation of Gastrodia elata suited to the local natural environment. 1. The quality and quantity of fungal inoculum are the foundation for ensuring the germination and growth of Gastrodia elata seeds. (1) The germination rate of Gastrodia elata seeds depends on the quality and quantity of the seed germination fungus. Practice has shown that sowing Gastrodia elata with No. 8104 seed germination fungus mixed in gives a high germination rate and fast germination speed.
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Propagation Methods and Key Technical Points for Gastrodia elata
I. Asexual Propagation 1. Cultivation period. Generally, winter planting is carried out in November, and spring planting in March-April, with winter planting being preferable. 2. Selection of seed tubers. White tubers and rice tubers are preferred, with each weighing 5 g-10 g being optimal. Select those with no disease spots, no wounds, no frost damage, no rot, a spindle-shaped body, and obvious bud eyes as seed tubers. Some also use arrow tubers as seed tubers, but the terminal buds must be removed. 3. Amount of seed tubers used. This should be determined by the size of the seed tubers and the number of fungal logs per pit. Generally, for each pit using 9-10 fungal logs,
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Asexual Propagation Methods and Key Technical Points for Gastrodia elata
It should be divided into the following steps: (1) For seed tubers, select fresh, intact white tubers or small tubers that are disease-free, frostbite-free, and rot-free. The planting period is from October each year to May of the following year. In April of the following year, when the ground temperature rises and Gastrodia elata begins to grow (10-15°C), Armillaria mellea (which begins to grow at 6-8°C) can already supply nutrients to Gastrodia elata. (2) Fixed fungus bed cultivation method. This is carried out in the original fungus wood cultivation pit. First, scrape open the covering of the pit with the fixed fungus wood, take out the upper layer of fungus wood, and then scrape open the filler on the fixed fungus wood. After the bottom layer of fixed fungus wood is exposed, do not move the fungus wood
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Detailed Explanation of Fine Processing Methods and Technical Points for Gastrodia elata
Gastrodia elata must be processed as soon as it is dug up and harvested, because if stored for too long, it easily loses its sap, reducing the drying ratio. Spring-harvested Gastrodia elata especially cannot be stored. Spring temperatures are high, and if it is not processed in time, it will also become moldy and rot. During processing, first wash the dug-up Gastrodia elata clean of soil with clean water, then wipe off the moisture with a cloth, and then put it in a pot to stir-fry together with fine sand. According to the size of the pot (No. 1 or No. 2 pot), put fine sand in each pot for stir-frying. According to the size of the pot (No. 1 or No. 2 pot), put 4-7.5 kg of fine sand in each pot and 1.5-2.5 kg of Gastrodia elata. It should be processed according to
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Key Technical Points for Foliar Fertilization of Cotton to Prevent Premature Senescence
In the late growth stage of cotton, root activity gradually declines and the ability to absorb water and nutrients weakens accordingly. Adopting the method of spraying fertilizer solution promotes the absorption and utilization of nutrients by cotton, extends the functional period of leaves, improves root activity, and increases boll weight. As for the concentration of the fertilizer solution, urea is best at 1%, adding 0.5 kg of urea to 50 kg of water; potassium dihydrogen phosphate and superphosphate are best at 1%-1.5%. Superphosphate should first be soaked for 24 hours; after the impurities settle, slowly pour out the clear liquid, dilute with water, and then spray. At the same time, Tianfengsu or Shuofeng 481 may be appropriately added, which can
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Key Technical Points and Precautions for Irrigating Cotton Fields
Cotton is irrigated 3-5 times throughout the whole growth period, and irrigation should follow the principle of late first watering, quick second watering, and full third watering. The first watering is carried out at noon when the symptoms of water deficiency in cotton leaves are obvious, and it is best to wait until 10% of the plants in the cotton field have set bolls before applying the first watering. Generally, late June to early July is the best period for the first irrigation. For vigorously growing fields, delay watering until each plant has set 1-2 bolls. Strengthen water control to prevent excessive vegetative growth; the amount of the first irrigation should be small, with a water volume of 50-60 cubic meters per mu. The interval between the first and second watering is 8-10 days, and the second
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Key technical points for winter management of tea plants to help tea gardens overwinter safely
1. Carry out the garden-closing work by spraying the whole tea plant with 0.4-0.5 degrees Baumé lime-sulfur mixture. 2. Apply 150 kg of decomposed cake fertilizer in holes or furrows, or 100 kg of special compound fertilizer for tea, and finish applying the base fertilizer by November. 3. In conjunction with fertilization, clear weeds inside and around the garden to reduce overwintering habitats for pests. 4. For expanding tea gardens, select good varieties, deeply plow furrows in the tea garden, apply base fertilizer deeply, adopt double-row single-plant planting, low-hole cultivation, and low-position pruning, and strive to complete planting in this winter and next spring.
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Detailed Explanation of Tea Plant Pruning Methods and Technical Key Points
Tea plant pruning is a measure carried out on the basis of comprehensive management of soil, fertilizer and water in the tea garden, whereby, according to local natural conditions, tree age and the growth habits of the variety, the distribution and translocation of nutrients in the tea plant body are properly controlled and regulated so that nutrients are rationally utilized and distributed. However, it must be closely coordinated with fertilizer and water management, combined with plucking and leaf retention, and attention must be paid to pest and disease control, so that the tea plants recover quickly and grow well after pruning. Formative pruning: for the first formative pruning of young tea plants, the height and the thickness of the branches have a close bearing on the strength and number of future branches.
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Key Technical Points for Rearing Chicken Feed and Feeding Management
Rearing chickens have a relatively strong digestive capacity. Switching from chick feed to rearing chicken feed mainly involves lowering the protein level of the diet to prevent premature laying, and also to reduce non-productive feed costs. The feed change should have a 1-week transition period, gradually transitioning from chick feed to rearing feed, so that the chickens have an adaptation process. Since rearing chickens are in a period of vigorous development of muscles, bones, respiratory system, digestive system and reproductive system, although the feed quality can be slightly reduced, the proportions of various nutrients must be balanced.
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Prevention and Control Methods and Technical Key Points for Pig Cold Diarrhea
The root cause of pig "cold diarrhea" disease has now been confirmed to be infection of pigs with transmissible gastroenteritis and epidemic diarrhea, and pigs are prone to this disease when the weather turns cold. Once a pig contracts this disease, in addition to severe diarrhea and pig death (mortality of suckling pigs can reach as high as 100%), it also seriously affects pig growth and increases the culling rate of pigs. In order to effectively control the occurrence of this disease, the pathological characteristics and prevention and control measures of the disease are introduced as follows: 1. Pathological characteristics: Porcine transmissible gastroenteritis and porcine epidemic diarrhea
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