Exposed to high yield and efficient cultivation of camphor

First, use improved varieties to cultivate strong seedlings. Choose a variety of disease-resistant varieties with strong growth potential, strong aromas, and oils and fats, such as black oil clams and red oil clams. Seeds are soaked in 1% formaldehyde solution for 20 minutes or soaked in 0.5% potassium permanganate solution for 1 day. Then the seeds are removed, washed several times, drained and placed in a wet cloth bag (or sack). 7-10 days, when a small number of seed split mouth exposed radicle can be sown. From the end of March to the beginning of April, sowing at the lowest daily temperature of 1°C-5°C. In the whole seed bed, the spacing is 20-30 cm or 40 cm. The ditch is 3-4 cm deep and the broadcast width is 6-10 cm. Use the flat bottom of the ditch and pour the small water wet ditch. After seeping the water, sow the seeds evenly in the ditch. The density is to ensure that there are 25-30 shoots per m2. Seed nursery 30-60 grams per hectare. After the sowing, the fine-grained soil is 1-1.5 centimeters long, and the sloping ditch is even and smooth. If the weather is dry, you can thicken the soil or cover it with another layer of fine sand. You can also cover the surface of the mulch to protect the seedlings. After sowing, in order to prevent soil compaction, a 1-meter-high shed can be placed on the ridge and the shed can be covered with corn stalks or weeds. When the seedlings grow to a height of 10-15 cm, the cover is removed. 1-2 true leaves when the seedlings, so that the seedlings maintained at about 10 cm. 3-4 pieces of true leaves when the Dingmiao, plant spacing of 15-20 cm or 30 cm. When 2-3 true leaves are sprayed with 0.1%-0.2% urea solution. When the height of seedlings is 20 centimeters, combined with watering, 150 kg of urea per hectare or foliar spray of 0.1% to 1% of urea solution is applied. In mid-August, 187.5 kg of superphosphate and potassium sulfate were applied per hectare.
Second, the election and planting. Choose the groundwater level of 2-3 meters, good drainage, and the ability to retain water and fertility. The planting method is large and small, with a large row spacing of 1-3 meters, a small row spacing of 1-2 meters and a 0.2-0.3 meter spacing. If the plexiform planting method is adopted, the spacing is 2.5-3 meters, the cluster distance is 2 meters, the clusters are 0.3-0.5 meters, and the triangle is planted.
Third, strengthen fertilizer and water management. Seedlings are planted and poured with water once, and then poured again 20-30 days later. Every time after watering or after the rain, we must cultivate the grass in time. During April-May and July, each fertilizer was applied once, and 100-300 kilograms of urea or 150-2.25 kilograms of human waste was used per hectare, and nitrogen fertilizer and watering were not applied after August. In September, 750-900 kg of calcium phosphate was applied per hectare, cultivating and pouring frozen water between rows to enhance the cold resistance of the plants. In mid-November, 30 cm of earth can be planted in the roots of saplings, and the soil is removed in early spring in the following year. For the first 3-5 days before harvesting, apply 1 nitrogenous fertilizer or human excreta. Use 0.5-1 kg per tree and 0.1-0.2 kg for young trees. When the new shoot is about 3 cm long, the urea solution with a concentration of 0.25% is sprayed and watered after top dressing. In the spring, summer and autumn seasons, the compound fertilizer is applied once a month.
Fourth, timely harvest. Before the spring branches are 20 cm long and have not been lignified, they can be harvested before sunrise. Within one to three years, only one harvest is performed each year, and two to three harvests are conducted each year after three years.

  1.Good safety of gelatin-free.The first lyophilized Varicella Vaccine, containing no gelatin from animals, invented and produced in China. Getting rid of gelatin from varicella vaccine can significantly decrease the ratio of anaphylaxis incidence .

2.Long validity period by good stability. The first approved varicella vaccine with 36 months of validity period in the world. Adopting BH-2 stabilizer with own IP rights (Chinese patent granted No.: ZL200910138411.6, International patent application No.: PCT/CN2009/001405) greatly enhances the stability of the product and ensures the validity period for 36 months under the storage condition.

3.Better protection with high titer and immune efficacy. It`s documented that compared with the varicella vaccine of low titer, high titer vaccine can reduce breakthrough cases by nearly 75%  in vaccination. Of all released batches of Varicella Vaccine from BCHT, the titers are not less than 10000 PFU/dose tested by National Institutes for Food and Drug Control.

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