Suitable variety Red Dragonfly Cultivation Techniques 1. Nursery (1) Selection of land: Choose flat land, deep soil, loose and fertile, sunny leeward, adequate lighting, convenient irrigation and drainage, groundwater level less than 2 meters, no water accumulation in the flood season. First deep-dip 20 to 25 centimeters, make a wide 1.2 to 1.5 meters, and a short and appropriate cockroach. More than 1% of organic matter in soil is available, and the best available NPK is 100, 50, and 100 mg/kg, respectively. (2) Appropriate sowing: first remove species wings, loquat seeds, peels and other debris. The use of plastic sheds for intensive seedlings can be planted under the "spring equinox" to "clear and bright"; the use of open-air seedlings is preferred for "clear to light" and "grain rain." For every 667 square meters, 1.5 to 2 kg of seedlings are planted under the seedlings, with seedlings as the best, spacing 30 to 40 centimeters, seeding depth of 1.5 to 2.5 centimeters, and soil depth of 1.5 to 2.0 centimeters. When the nursery is sufficient, the open field seedling method can be used, and 3 to 4 rows of seedlings can be planted in a row and the width of the ditch is 10 to 12 cm. After sowing, it covers a thin layer of fireweed or covered mulch until the seedlings are immediately unearthed to remove grass or mulch. (3) Seedling management: When the seedlings grow, there are 3 to 4 true leaves, about 10 cm high seedlings, “go to the dense, stay thin, stay weak, stay strong, and stay smallâ€, and the distance between the plants is 5 to 10 cm. , about 200 to 400 seedlings per square meter. Seedlings generally do not water the seedlings, promote root system, plant thicker. In the middle and late July of each month, 200 to 300 kilograms of earth-fertilizer for every 667 square meters, 50 to 60 kilograms of plant ash and 15 to 20 kilograms of urea will be watered after fertilization. In order to promote lignification in September, the water control of nitrogen should be controlled. At this time, 0.3-0.4% of potassium dihydrogen phosphate or 5%-6% of ash and 2% of superphosphate can be sprayed on the foliage. At the same time, as the seedlings are extremely intolerant, they should be taken into account during the rainy season to prevent the accumulation of stagnant water, and timely control of diseases and insect pests. Seedlings often stand up and down, trips down, root rot, available 1% of double effect Ling 500 ~ 700 times liquid, each Irrigation once every 7 days, even irrigation 2 to 3 times. If it is found before the colonization, if it is found to be caused by the tea plant, it should be sprayed with 20% triclosan EC 1000 times for prevention and treatment. When the seedling height is 0.6 meters, 15% of the paclobutrazol powder can be sprayed with 200-300 times of liquid, and the sprayed part is the heart leaf, which is sprayed once every 10-15 days, and can be sprayed continuously for 4-6 times. Paclobutrazol significantly controls the growth of scented pods, shortens the length of the internodes and compound leaves, and makes the top buds full, which plays a role in early sealing. 2. Colonization Implanted in "frost" 3 to 5 days before the first seedlings irrigated, so that it fully absorb water. Then plan the seedlings, keep as many stout lateral roots as possible while digging, and shake off the root soil. At the same time, the roots of the seedlings will be placed in trenches in the trenches on the spot, and a seedling will be planted in a yard so that the seedlings will be slanted to reduce the damage caused by the cold wind. Then the buried earth will be buried, and then a ditch will be dug again, followed by a single press. After flooding, it is necessary to pour a large amount of water so that the seedlings do not dry out under strong northwest wind conditions. In order to ensure that the leaves of autumn sassafras seedlings fall off in a timely manner, ethephon treatment can be used, in which 2000 mg/kg ethephon is used to treat the number of leaves and yellow leaves. About 30 days after the planting, the leaves of Toona sinensis fall off. At this time, the seedlings should be graded for planting. Before planting the best 667 square meters of soil miscellaneous fertilizer 2000 to 3000 kilograms, mixed with ternary compound fertilizer 20 to 30 kilograms, deep-flip 20 to 25 centimeters after fertilization, for fine soil preparation, and to advance shed 5 to 7 days To increase the temperature. Planting pods 1.5 meters wide, 50 centimeters between each pod, colonization when starting from the end of the greenhouse, the grading seedlings in the shed in accordance with the principle of short front height, with 10 cm 10 cm spacing specifications of a strain of plant erection In the middle, the roots are staggered and flattened, and the earth is filled back into the earth. Fill the soil and gently shake the seedlings to fill the gap. After planting, water and cover a layer of leaves, grass, etc. on the surface. 667 square meters of winter sheds need to plant 40,000 seedlings of 50,000 seedlings. 3. Post-planting management (1) Temperature: 7 to 10 days after the camphor planting, it cannot be heated immediately, and only the natural solar heat of the sun is used. Daytime temperatures need to be maintained at 10 to 25°C and at least 10°C at night. The suitable soil temperature is 16 to 25°C. After the planting, the average daily temperature is controlled at 15°C or more. Usually, the buds are germinated within 10 to 20 days, in order to enable early germination. 20 to 100 mg/kg of gibberellin can be used to treat the apical buds that have been dormant, which can significantly increase the number of germinating plants. Among them, the dormant effect was best with 100 mg/kg gibberellin. After germination, the temperature is maintained above 20°C. After 10 to 15 days, the shoot length can reach 20-30 cm. Generally, it takes 30-40 days from the time of planting to the first harvest. (2) Humidity: The suitable humidity for the production of toona sinensis buds is about 70%. When the humidity in the shed is too high, the humidity must be released. When the humidity is insufficient, spray water on the branches regularly, and spray water on the branches every 3 to 5 days after the planting. (3) Extra-root dressing: After germination from the top bud, the dressing is performed once every 10 to 15 days. 0.2% urea, 0.2% potassium dihydrogen phosphate, and 0.3% ternary compound fertilizer were alternately sprayed. After the Spring Festival, a small amount of urea can be added on the ground to mix the grass ash. 4. reward (1) Harvesting: Shoots must be harvested in 20 to 25 cm in length. When the first shoot shoots, shoots should be budded, and the buds on the back of the buds can germinate. Before and after the "clear and bright" can be taken down successively 5 to 6 times. (2) Transplanting of flat pods: Generally, “Tsing-Ming†to “Guyu†exposed toona sinensis buds are on the market, and pods are used for flat hoeing. (In cultivating sapling seedlings, the top growth advantage of citrons is very strong, and the height of the cultivation must be controlled. Therefore, it is considered that it is more appropriate to use short cuts of 20 cm. Transplanting. The seedlings are adapted to 7 to 10 days, and then the pods are planted in Daejeon and the fertilizer and water management are strengthened. Promote restoration of tree vigor and cultivation of strong seedlings. Wait until early winter before moving into the greenhouse. Continue to conduct high-yield cultivation in winter greenhouses. Dietary nutritional supplements are mainly made up of vitamins, minerals and extracts with a relatively clear structure-activity relationship. They Supplement essential nutrients and bioactive substances by oral administration to improve the health level of the body and reduce the risk of disease. Generally, they exist in concentrated form such as tablets or capsules. Adding nutrients or bioactive substances in the traditional form of food, such as tea bags, soft drinks, wine, dairy products do not supplement nutrients as the main purpose, do not belong to dietary nutritional supplements.Based on the theory of modern nutrition, preventive medicine and evidence-based medicine, dietary nutritional supplements can enhance physical fitness, improve function, balance metabolism and reduce the risk of disease by adjusting the intake of various nutritional elements or bioactive substances in people's diet.we have Nitrobenzaldehyde,Polymyxin B sulfate,Baricitinib,L-5-MTHF Ca,Folic acid,Folic Acid (Vitamin B9),BCAA,Dicreatine Malate,Tricreatine Citrate,Dicreatine Citrate,Creatine Citrate. Food Supplement,Nutrition Supplements,Food peptide,Amino acid Xi'an Henrikang Biotech Co.,Ltd , https://www.xianhenrikang.com
Cultivation Techniques of Seedlings in Red Locust Greenhouse