1. Straw treatment: The dry and mold-free rice straw is used as the raw material for straw mushroom planting. After the straw is planted in the sunny days, the straw is exposed to the sun for 2 to 3 days, and then 0.5 kg is wound into a “8†shaped grass, and then placed in 2% to 3% lime water for 5 to 8 hours. Remove and drain the pile and ferment. When the stack temperature rises to 60-70 °C, the pile is turned over. After the pile is piled up, when the temperature of the haystack center rises to 60-70 °C, the pile is turned over again. The fermentation period is 5-7 days, and the pile is turned over twice to make the straw soft. The fermented straw has a soft texture, which is easy to break, tastes fragrant, is not sour and smells, and is brownish brown.
Second, the comparative study of strain formula: Through the comparative study of five different formulas of the first-class strains, it is concluded that the formula hyphae added to glucose has the best growth. The best formula was selected by comparing the four formulas of the second and third grades: 9 kg of wheat, 1 kg of decomposed manure, 0.1 kg of gypsum powder, 0.01 kg of lime powder, water amount, pH 7.5, loaded After the bottle, cover 15 grams of decomposed manure on each bottle. According to this formula, mycelium grows best.
Third, the paving sowing: every 4 cm of the paving material to leave 4-5 cm of open space for filling, about 12 kg per square meter of material, a one-time paving. The wheat cultivar is used, and the seed amount is about 10% of the dry material. First, it is planted at a distance of 5 cm and 5 cm, and then spread on the surface of the material. After the inoculation with the wooden board, the temperature is above 20 °C, the third time. In the day, the bacteria should be checked. If the temperature of the film exceeds 28 °C, it can be ventilated and cooled at night. Do not expose the film frequently to avoid mold contamination. As long as there is water flowing in the ditch, there is generally no high temperature. If the contamination of the bacteria is found, 50 g of caustic soda can be dissolved in 1 kg of water, and the syringe is injected into the contaminated area of ​​the bacteria and the periphery for 1 week. There is a certain control effect, and the contaminated area can also be covered with lime powder. Flat compaction, cover the film, covered with straw.
Fourth, the mushroom management: pay attention to temperature changes after sowing, control stack temperature below 32 °C within 2 weeks, to prevent high temperature burning bacteria, generally do not uncover the film. Start the second week after the broadcast and ventilate once every 3 days. The method is to stir the plastic film to stir a few times, so that the excess carbon dioxide gas is discharged, and then it is covered. In the fourth week after sowing, it can be seen that the hyphae are white and have a strong mushroom flavor. When yellow water drops appear on the surface, it indicates that the hyphae have been made to produce mushrooms (25 to 30 days). At this time, the temperature difference stimulation and the light stimulation should be increased, and a large number of buds can be seen in a few days. When the mushroom bud cover grows to 1 cm, spray water into the air every day to maintain a relative humidity of 85% to 95%. It takes 5 to 7 days from the bud to the harvest, and it is harvested and sold when the spores are not ejected.
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Spinal fixation system consists of posterior spinal fixation system,minimally invasive spinal system,posterior cervical fixation system,anterior cervical plate system,laminar shapping plate system and interbody fusion cage system.
Cervical and lumbar segmental implants are the most common types of spinal internal fixation, which can be roughly divided into anterior and posterior internal fixation according to their fixed positions and surgical approaches.
The anterior cervical vertebra is mostly fixed with locking plates and fixed screws,what are mostly made of titanium alloy materials; The posterior approach was fixed using the pedicle screw and rod system.
In some cases of spinal vertebrae bone defect, it is also necessary to implant titanium cage or PEEK cages to promote bone fusion of adjacent vertebrae. The titanium mesh cage refers to a cage shaped container made of titanium alloy material, which is loaded with autologous or allogeneic bone and placed in the spinal vertebrae bone defect, which not only serves as a strength support but also plays a role in bone fusion.
spinal fracture,Pedicle Screws,Spinal Implant,Spine Implants
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