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First,injection puncture instruments
For example:disposable sterile syringes,intravenous venous needles,intravenous catheters,disposable biopsy needles,etc.
Second,medical and health materials and dressings
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Third,medical suture material
For example:absorbable sutures,non-absorbable sutures,medical zips,etc.
Fourth,medical polymer materials
For example:disposable infusion set,blood collection device,anesthesia bag,chest drainage tube, catheter,tracheal intubation,stomach tube,examination gloves,drainage bag, and so on.
How to prevent "cold dew wind" harm late rice
Before and after the dew cold season, due to the cold air southwards, a cold, dry and strong northerly wind appeared, which the people called “cold dew windâ€. The “cold dew wind†is very harmful to the late rice, and generally can reduce the seed setting rate by about 20%, which often results in serious reduction of the late rice production. Especially in the heading and flowering stage of rice, the “cold dew wind†may lead to poor flowering and pollination of rice, impeded grouting, increased empty grains, half empty grains and dark grains, and even appeared the phenomenon of “pilfering neck spikesâ€, resulting in a significant decrease in yield. Non-heading rice will also produce dry leaf due to the effect of dry wind or low temperature, which will cause poor growth and development of the rice plant, resulting in reduced yield. "Cold Dew Wind" generally appears from late September to mid-October. Therefore, we must increase our vigilance to do a good job of defense against "cold dew". Here are some windbreak methods for reference. First, apply sufficient wind-resistant fertilizer to enhance the rice's own wind resistance. Wind-fat farmers are also known as tail-fat fertilizers. The time for applying anti-wind fertilizer should be strictly controlled. The quick-acting fertilizer should be applied 3 days before the “cold dew wind†and the farm manure should be applied 5–7 days before the wind. The effect is better, so that it is possible to raise the strength of the tire and withstand “cold dewâ€. Wind" attack. Second, irrigation water, improve the microclimate in the field. Before the "cold dew wind" comes 1-2 days, it can be poured back to about 3 inches deep in the field to keep the original higher temperature. According to the experiment, deep irrigation can increase the temperature of the ear, increase the soil temperature by 2-3°C, and increase the humidity of the field by 20%-30%. The depth of irrigation is controlled according to different conditions. The wind is large, there is no sunlight and the night is deeper; during the day, the sun is lighter, or it is kept moist. After the wind is blown out, it should be immediately eliminated to avoid the black roots and the culm leaves becoming soft and reduce wind resistance. Spraying water during the “cold dew†period can increase the humidity between the plants, which is conducive to normal heading, flowering, pollination and grouting of rice, and can improve the seed setting rate by 5%-10%. To adhere to the end of the wind spray, and to wet the loquat leaf is appropriate, the effect is obvious. Third, during the "cold dew" during the top dressing, spraying nutrients. This is a good measure to fight against "cold dew and wind." Can spray urea, phosphate fertilizer, urine, grass ash, potassium chloride, etc., generally per acre can increase rice production 64-93 pounds. Specific methods are: 1 phosphate 3 kg + urine 10 kg + water 120 kg (spray per acre, the same below); 2 urea 1 kg + phosphate 2 kg + plant ash 20 kg + water 120 kg; 3 urea 1 kg + potash 1 Kg + water 120 kg; 4 urea 1 kg + phosphate 0.5 kg + water 120 kg. 5 or single-sprayed phosphate fertilizer 40 times, urea 200 times, potassium dihydrogen phosphate 500 times. Spraying compound fertilizers is also very effective. Generally, it can increase 3 grams of grain weight and increase production by 9%. In addition, spraying growth hormone to increase production spirit, gibberellic acid (90%), trace elements of molybdic acid, sodium humate, etc., in the appropriate amount of nitrogen and phosphorus fertilizer also has a certain effect of increasing production. Fourth, spray warming agent. According to the experience of Guangxi, the application of a surface warming agent has the effect of increasing soil temperature. Adding 8 parts of raw water to 8 parts of water can increase the panicle temperature by 0.2-0.4°C, increase the seed setting rate by 21%-27%, and increase rice production by 16 kg per mu. 5. Make up for fat in time after “cold dew wind†and pay attention to disease prevention. Affected by “cold dew windâ€, the vigor of rice plants is generally weakened, and the leaves also cause mechanical damage and are likely to cause bacterial blight. Therefore, it is necessary to timely recharge the fertilizer to restore rice plant vigor, promote grouting, and ensure grain filling. In addition, it is necessary to apply pesticides and prevent diseases in a timely manner to avoid the loss caused by the spread.